Fix the --remove pattern in lcov to exclude catch from the coverage

Merge branch 'postgresql' into 'master'

Add postgresql support

Closes #3237

See merge request louiz/biboumi!18

Add postgresql support

Drop support for botan < 2.0

fix #3274

Merge branch 'orm' into 'master'

Pure c++ sqlite3 ORM

Closes #3271

See merge request !11

Find sqlite3 instead of litesql

Simplifies the CMakeLists.txt a little bit

Do not call pkg_check_module if the MODULE_FOUND is already cached

Improve the handling of the biboudb.hpp dependencies

Refactoring louloulibs and cmake

Use OBJECT libraries
Remove the louloulibs directory
Write FOUND variables in the cache

Add a make coverage target to merge all other coverages, and upload to codecov

Do not remove the .info generated by lcov

Fix the indent in the coverage.cmake file

[skip-ci]

Remove build/* from the coverage, because that code isn’t part of biboumi

Mark some more cmake variables as advanced

Clean the list of options visible in non-advanced ccmake

Make lcov gcov etc optional

make coverage will display an error instead

Add code coverage support

make coverage runs the test_suite and generates a report

Introduce an optional Database module

Uses litesql

Remove all the libs that are now in louloulibs

Add the FindCARES cmake module