Add binary schema reflection (#7932)

* Add binary schema reflection

* remove not-used parameter

* move logic from object API to base API

* forward declare

* remove duplicate code gen that was stompping on the edits

* reduce to just typedef generation

* fixed bazel rules to not stomp

* more bazel fixes to support additional generated files

build_defs.bzl

@@ -165,6 +165,7 @@ def flatbuffer_cc_library(
         name,
         srcs,
         srcs_filegroup_name = "",
+        outs = [],
         out_prefix = "",
         deps = [],
         includes = [],
@@ -185,6 +186,7 @@ def flatbuffer_cc_library(
       srcs_filegroup_name: Name of the output filegroup that holds srcs. Pass this
           filegroup into the `includes` parameter of any other
           flatbuffer_cc_library that depends on this one's schemas.
+      outs: Additional outputs expected to be generated by flatc.
       out_prefix: Prepend this path to the front of all generated files. Usually
           is a directory name.
       deps: Optional, list of other flatbuffer_cc_library's to depend on. Cannot be specified
@@ -232,7 +234,7 @@ def flatbuffer_cc_library(
     flatbuffer_library_public(
         name = srcs_lib,
         srcs = srcs,
-        outs = output_headers,
+        outs = outs + output_headers,
         language_flag = "-c",
         out_prefix = out_prefix,
         includes = includes,