Moves all of the swift test code into tests/swift (#7509)

Fixes failing tests by regenerating test cases

.github/labeler.yml

@@ -15,9 +15,7 @@ c#:
 swift:
   - '**/*.swift'
   - swift/**/*
-  - tests/FlatBuffers.GRPC.Swift/**/*
-  - tests/FlatBuffers.Benchmarks.swift/**/*
-  - tests/FlatBuffers.Test.Swift/**/*
+  - tests/swift/**
   - src/idl_gen_swift.cpp
 
 javascript:

.github/workflows/build.yml

@@ -422,7 +422,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: test
-      working-directory: tests/FlatBuffers.Test.Swift
+      working-directory: tests/swift/tests
       run: sh SwiftTest.sh
 
   build-swift-wasm:
@@ -435,7 +435,7 @@ jobs:
       - name: Setup Wasmer
         uses: wasmerio/setup-wasmer@v1
       - name: Test
-        working-directory: tests/FlatBuffers.Test.Swift.Wasm
+        working-directory: tests/swift/Wasm.tests
         run: carton test
 
   build-ts: