Pass CXX_FLAGS from properties to maesdk module

[TedaLIEz]

Just like what we've discussed in #1136, passing parameter to build is more explicit.

We can get the CXX_FLAGS from the following:

1. Add CXX_FLAGS in gradle.properties
2. Pass param as -PCXX_FLAGS="xxxx" in command line, for example: ./gradlew :maesdk:assemble -PCXX_FLAGS="HAVE_CS4=1"
3. Read the CXXFLAGS env variable (This is the fallback option)

[TedaLIEz]

[Build for Android](https://github.com/microsoft/cpp_client_telemetry/actions/runs/4783012741/jobs/8502855774#step:2:491)
repository 'https://github.com/microsoft/cpp_client_telemetry_modules.git/' not found

Looks like a permission issue? I don't have the access to https://github.com/microsoft/cpp_client_telemetry_modules.git

[TedaLIEz]

@anod Could you please help review this PR? And what should I do about the error in CI pipeline?

[anod]

@anod Could you please help review this PR? And what should I do about the error in CI pipeline?

Looks like network issue, I rerun the build

> Could not resolve all files for configuration ':app:lintClassPath'.
   > Could not download groovy-all-2.4.15.jar (org.codehaus.groovy:groovy-all:2.4.15)
      > Could not get resource 'https://repo.maven.apache.org/maven2/org/codehaus/groovy/groovy-all/2.4.15/groovy-all-2.4.15.jar'.
         > Could not GET 'https://repo.maven.apache.org/maven2/org/codehaus/groovy/groovy-all/2.4.15/groovy-all-2.4.15.jar'.
            > Connection reset

[anod]

[Build for Android](https://github.com/microsoft/cpp_client_telemetry/actions/runs/4783012741/jobs/8502855774#step:2:491)
repository 'https://github.com/microsoft/cpp_client_telemetry_modules.git/' not found

Looks like a permission issue? I don't have the access to https://github.com/microsoft/cpp_client_telemetry_modules.git

This is private repo which contain private / proprietary code not for OSS

[lalitb]

Thanks. Good to merge once CI tests are successful

[TedaLIEz]

@lalitb Could you please help merge the PR? It seems that I don't have the write access to this repo.