Convert App-templates submodule in a CMake module

Close for GG RC2

• Does your lava/fuego output is screwed-up ? I think that the ouptut without color is ok by now. I already see incompatible terminal without color only displaying the colorless messages

• Why ? About now, I'm able to debug any software with those flags, but I'm ok if that is needed.

• As already saw at AMM, this could be accomplished using CMake variable definitions at configuration time. Might the app-templates has to be modified to making sure that debug symbol and stuff are removed from the final binary when building a release or coverage build.

I think that both cmake module and submodule are quite equal about feature, as far as I see, now with the latest commit .

I reviewed the current cmake macros/variables in the app-templates and have a few comments:
-  https://gerrit.automotivelinux.org/gerrit/gitweb?p=apps/app-templates.git;a=blob;f=cmake/cmake.d/02-variables.cmake;h=693991a6b82ef404b0d4861fd990e84cc1af11a7;hb=HEAD#l28
  – with my CI hat on: We need also a colorless option so that it does not screw-up the (yes, dumb) serial terminal

-  https://gerrit.automotivelinux.org/gerrit/gitweb?p=apps/app-templates.git;a=blob;f=cmake/cmake.d/01-build_options.cmake;h=abd673466af952a9d60c4f35315dfbc643262339;hb=HEAD#l92

   – we might have to also define -O0

-  we need to be able to build all 4 wgt types - this might require multiple build passes / subfolders :

   – normal build / X.wgt

   –  debug build  /  X-debug.wgt

   –  coverage build / X-coverage.wgt

   –   test build  /  X-test.wgt

   – At best these all would be additive at install time . e.g. Normal + Debug (as distros do for debug rpm's) . We need to see about coverage (that might become exclusive at execution time). The -test wgt only ships the test part then.

Please bring the cmake module to feature parity before we add the warning.

A few notes reviewing the current templates in the next comment ...

Sure, old repo should remains read-only once the warning message is implemented. New features will only lies in the latest cmake_app_modules repo

Code is in sandbox and would be soon be released.