PHP Proto3: run generate_projects.sh

BUILD

CMakeLists.txt

Makefile

tools/dockerfile/interoptest/grpc_interop_php/Dockerfile

tools/dockerfile/interoptest/grpc_interop_php7/Dockerfile

...dockerfile/stress_test/grpc_interop_stress_php/Dockerfile

tools/run_tests/sources_and_headers.json

vsprojects/grpc_protoc_plugins.sln

vsprojects/vcxproj/grpc_php_plugin/grpc_php_plugin.vcxproj

...s/vcxproj/grpc_php_plugin/grpc_php_plugin.vcxproj.filters

...s/vcxproj/grpc_plugin_support/grpc_plugin_support.vcxproj

...j/grpc_plugin_support/grpc_plugin_support.vcxproj.filters