Removed test/generate_code.{sh|bat} (#6873)

* removed test/generate_code.{sh|bat}

remove c++0x from generate_code.py

added check generate code script in python

add windows specific call

added flags to generate_code.py

Set c++-0x on BUILD_LEGACY

Skip generating monster_extra if requested

* added option to skip monster extra

* add conditional to skip 2010 check gen

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,14 +2,13 @@ Thank you for submitting a PR!
 
 Please delete this standard text once you've created your own description.
 
-Make sure you include the names of the affected language(s) in your PR title.
-This helps us get the correct maintainers to look at your issue.
+If you make changes to any of the code generators (`src/idl_gen*`) be sure to
+build your project, as it will generate code based on the changes. If necessary
+the code generation script can be directly run (`scripts/generate_code.py`),
+requires Python3. This allows us to better see the effect of the PR.
 
-If you make changes to any of the code generators, be sure to run
-`cd tests && bash generate_code.sh` (or equivalent .bat) and include the generated
-code changes in the PR. This allows us to better see the effect of the PR.
-
-If your PR includes C++ code, please adhere to the Google C++ Style Guide,
+If your PR includes C++ code, please adhere to the
+[Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html),
 and don't forget we try to support older compilers (e.g. VS2010, GCC 4.6.3),
 so only some C++11 support is available.
 

.github/workflows/build.yml

@@ -136,7 +136,9 @@ jobs:
     - name: cmake
       run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_BUILD_TESTS=OFF -DCMAKE_BUILD_TYPE=Release . && make -j4
     - name: Generate
-      run: bash scripts/check-generate-code.sh && bash scripts/check-grpc-generated-code.sh
+      run: scripts/check_generate_code.py
+    - name: Generate gRPC
+      run: bash scripts/check-grpc-generated-code.sh
 
   build-benchmarks:
     name: Build Benchmarks (on Linux)