CatchAddTests now adds tags as labels for ctest

[MaciejPatro]

• ctest --print-labels now will show list of available labels
• ctest -L <regex> will allow to run tests with given labels(tags)

Description

Having an executable with given list of tests:

> exercises/ut/exercisesTests --list-tests
All available test cases:
  Life, the universe and everything
  Having fun with lambdas
      [cpp11][lambdas]
  Delegating constructors
      [constructor][cpp11][delegation]
  User-defined literals functionality
  Class modifications introduces in C++11
      [cpp11][default][delete][final][override]
5 test cases

catch_discover_tests now discovers correctly:

ctest -N
Test project /home/mpatro/projects/clion/self_learn_repo/cmake-build-debug
  Test #1: Life, the universe and everything
  Test #2: Having fun with lambdas
  Test #3: Delegating constructors
  Test #4: User-defined literals functionality
  Test #5: Class modifications introduces in C++11

Total Tests: 5

also adding tags as labels and enabling running labels

> ctest -L lambdas --verbose
...
test 2
    Start 2: Having fun with lambdas

2: Test command: /home/mpatro/projects/clion/self_learn_repo/cmake-build-debug/exercises/ut/exercisesTests "Having fun with lambdas"
2: Test timeout computed to be: 10000000
2: ===============================================================================
2: All tests passed (11 assertions in 1 test case)
2: 
1/1 Test #2: Having fun with lambdas ..........   Passed    0.01 sec

100% tests passed, 0 tests failed out of 1

Label Time Summary:
[cpp11]      =   0.01 sec*proc (1 test)
[lambdas]    =   0.01 sec*proc (1 test)

Total Test time (real) =   0.03 sec

GitHub Issues

#1590

[codecov]

Codecov Report

Merging #1600 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1600   +/-   ##
=======================================
  Coverage   80.72%   80.72%           
=======================================
  Files         121      121           
  Lines        3424     3424           
=======================================
  Hits         2764     2764           
  Misses        660      660

[codecov]

Codecov Report

Merging #1600 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1600   +/-   ##
=======================================
  Coverage   80.72%   80.72%           
=======================================
  Files         121      121           
  Lines        3424     3424           
=======================================
  Hits         2764     2764           
  Misses        660      660

[horenmar]

Looks good, thanks.