Added a platform / language / feature support matrix to docs.

This is just a start, will need to be extended.

Change-Id: I5a9ad671911942dcb83fdd2bae537deed751cbfd

docs/source/FlatBuffers.md

@@ -115,6 +115,7 @@ sections provide a more in-depth usage guide.
     programs.
 -   How to [use the generated Go code](md__go_usage.html) in your own
     programs.
+-   [Support matrix](md__support.html) for platforms/languages/features.
 -   Some [benchmarks](md__benchmarks.html) showing the advantage of using
     FlatBuffers.
 -   A [white paper](md__white_paper.html) explaining the "why" of FlatBuffers.

docs/source/Support.md

@@ -0,0 +1,37 @@
+# Platform / Language / Feature support
+
+FlatBuffers is actively being worked on, which means that certain platform /
+language / feature combinations may not be available yet.
+
+This page tries to track those issues, to make informed decisions easier.
+In general:
+
+  * Languages: language support beyond the ones created by the original
+    FlatBuffer authors typically depends on community contributions.
+  * Features: C++ was the first language supported, since our original
+    target was high performance game development. It thus has the richest
+    feature set, and is likely most robust. Other languages are catching up
+    however.
+  * Platforms: All language implementations are typically portable to most
+    platforms, unless where noted otherwise.
+
+NOTE: this table is a start, it needs to be extended.
+
+Feature                        | C++    | Java   | C#     | Go     | Python | JS
+------------------------------ | ------ | ------ | ------ | ------ | ------ | ------
+Codegen for all basic features | Yes    | Yes    | Yes    | Yes    | Yes    | WIP
+JSON parsing                   | Yes    | No     | No     | No     | No     | No
+Simple mutation                | Yes    | WIP    | WIP    | No     | No     | No
+Reflection                     | Yes    | No     | No     | No     | No     | No
+Buffer verifier                | Yes    | No     | No     | No     | No     | No
+Testing: basic                 | Yes    | Yes    | Yes    | Yes    | Yes    | WIP
+Testing: fuzz                  | Yes    | No     | No     | Yes    | Yes    | No
+Performance:                   | Superb | Great  | Great  | Great  | Ok     | ?
+Platform: Windows              | VS2010 | Yes    | Yes    | ?      | ?      | ?
+Platform: Linux                | GCC282 | Yes    | ?      | Yes    | Yes    | ?
+Platform: OS X                 | Xcode4 | ?      | ?      | ?      | Yes    | ?
+Platform: Android              | NDK10d | Yes    | ?      | ?      | ?      | ?
+Platform: iOS                  | ?      | ?      | ?      | ?      | ?      | ?
+Engine: Unity                  | ?      | ?      | Yes    | ?      | ?      | ?
+
+

docs/source/doxyfile

@@ -751,6 +751,7 @@ INPUT = "FlatBuffers.md" \
         "GoUsage.md" \
         "JavaUsage.md" \
         "PythonUsage.md" \
+        "Support.md" \
         "Benchmarks.md" \
         "WhitePaper.md" \
         "Internals.md" \