#46 [LCOV] geninfo doesn't work correctly with relative paths

[ctrlFR34K]

When relative paths are used in coverage data geninfo the filenames read from *.gcov files are resolved using solve_relative_path which collapsed x/../y to y but relative paths read from *.gcno files are resolves using rel2abs which does not collapse this form of pattern.

The attached patch changes the code reading filenames from the *.gcno files to resolve the path using solve_relative_path. It also changes the glob which lists *.gcov files to also find those beginning with '.' since gcov-4.5.0 produces filenames of the form '..#path#to#source' if a relative path beginning '../' is found.

[ctrlFR34K]