[Scripts] Adds swift to generated code (#5806)

* Moved swifttest.sh code generator to generate_code + fix issue in ghpages

* Fixes small issue with cocoapods documentation

tests/monster_test.grpc.swift

@@ -0,0 +1,97 @@
+// Generated GRPC code for FlatBuffers swift!
+/// The following code is generated by the Flatbuffers library which might not be in sync with grpc-swift
+/// in case of an issue please open github issue, though it would be maintained
+import Foundation
+import GRPC
+import NIO
+import NIOHTTP1
+import FlatBuffers
+
+public protocol GRPCFlatBufPayload: GRPCPayload, FlatBufferGRPCMessage {}
+public extension GRPCFlatBufPayload {
+    init(serializedByteBuffer: inout NIO.ByteBuffer) throws {
+        self.init(byteBuffer: FlatBuffers.ByteBuffer(contiguousBytes: serializedByteBuffer.readableBytesView, count: serializedByteBuffer.readableBytes))
+    }
+    func serialize(into buffer: inout NIO.ByteBuffer) throws {
+        let buf = UnsafeRawBufferPointer(start: self.rawPointer, count: Int(self.size))
+        buffer.writeBytes(buf)
+    }
+}
+extension Message: GRPCFlatBufPayload {}
+
+/// Usage: instantiate MonsterStorageServiceClient, then call methods of this protocol to make API calls.
+public protocol MonsterStorageService {
+	 func Store(_ request: Message<Monster>, callOptions: CallOptions?) -> UnaryCall<Message<Monster>,Message<Stat>>
+	 func Retrieve(_ request: Message<Stat>, callOptions: CallOptions?, handler: @escaping (Message<Monster>) -> Void) -> ServerStreamingCall<Message<Stat>, Message<Monster>>
+	 func GetMaxHitPoint(callOptions: CallOptions?) -> ClientStreamingCall<Message<Monster>,Message<Stat>>
+	 func GetMinMaxHitPoints(callOptions: CallOptions?, handler: @escaping (Message<Stat>) -> Void) -> BidirectionalStreamingCall<Message<Monster>, Message<Stat>>
+}
+
+public final class MonsterStorageServiceClient: GRPCClient, MonsterStorageService {
+	public let connection: ClientConnection
+	public var defaultCallOptions: CallOptions
+
+	public init(connection: ClientConnection, defaultCallOptions: CallOptions = CallOptions()) {
+		self.connection = connection
+		self.defaultCallOptions = defaultCallOptions
+	}
+
+	public func Store(_ request: Message<Monster>, callOptions: CallOptions? = nil) -> UnaryCall<Message<Monster>,Message<Stat>> {
+		return self.makeUnaryCall(path: "/MyGame.Example.MonsterStorage/Store", request: request, callOptions: callOptions ?? self.defaultCallOptions)
+	}
+
+	public func Retrieve(_ request: Message<Stat>, callOptions: CallOptions? = nil, handler: @escaping (Message<Monster>) -> Void) -> ServerStreamingCall<Message<Stat>, Message<Monster>> {
+		return self.makeServerStreamingCall(path: "/MyGame.Example.MonsterStorage/Retrieve", request: request, callOptions: callOptions ?? self.defaultCallOptions, handler: handler)
+	}
+
+	public func GetMaxHitPoint(callOptions: CallOptions? = nil) -> ClientStreamingCall<Message<Monster>,Message<Stat>> {
+		return self.makeClientStreamingCall(path: "/MyGame.Example.MonsterStorage/GetMaxHitPoint", callOptions: callOptions ?? self.defaultCallOptions)
+	}
+
+	public func GetMinMaxHitPoints(callOptions: CallOptions? = nil, handler: @escaping (Message<Stat>) -> Void) -> BidirectionalStreamingCall<Message<Monster>, Message<Stat>> {
+		return self.makeBidirectionalStreamingCall(path: "/MyGame.Example.MonsterStorage/GetMinMaxHitPoints", callOptions: callOptions ?? self.defaultCallOptions, handler: handler)
+	}
+}
+
+public protocol MonsterStorageProvider: CallHandlerProvider {
+	func Store(_ request: Message<Monster>, context: StatusOnlyCallContext) -> EventLoopFuture<Message<Stat>>
+	func Retrieve(request: Message<Stat>, context: StreamingResponseCallContext<Message<Monster>>) -> EventLoopFuture<GRPCStatus>
+	func GetMaxHitPoint(context: UnaryResponseCallContext<Message<Stat>>) -> EventLoopFuture<(StreamEvent<Message<Monster>>) -> Void>
+	func GetMinMaxHitPoints(context: StreamingResponseCallContext<Message<Stat>>) -> EventLoopFuture<(StreamEvent<Message<Monster>>) -> Void>
+}
+
+public extension MonsterStorageProvider {
+	var serviceName: String { return "MyGame.Example.MonsterStorage" }
+	func handleMethod(_ methodName: String, callHandlerContext: CallHandlerContext) -> GRPCCallHandler? {
+		switch methodName {
+		case "Store":
+		return UnaryCallHandler(callHandlerContext: callHandlerContext) { context in
+			return { request in
+				self.Store(request, context: context)
+			}
+		}
+		case "Retrieve":
+		return ServerStreamingCallHandler(callHandlerContext: callHandlerContext) { context in
+			return { request in
+				self.Retrieve(request: request, context: context)
+			}
+		}
+		case "GetMaxHitPoint":
+		return ClientStreamingCallHandler(callHandlerContext: callHandlerContext) { context in
+			return { request in
+				self.GetMaxHitPoint(request: request, context: context)
+			}
+		}
+		case "GetMinMaxHitPoints":
+		return BidirectionalStreamingCallHandler(callHandlerContext: callHandlerContext) { context in
+			return { request in
+				self.GetMinMaxHitPoints(request: request, context: context)
+			}
+		}
+		default: return nil;
+		}
+	}
+
+}
+
+