Clean up.

src/configuration-files/: Move flb.conf to flb.conf.in and make it a template. Shorten refresh interval.

TODO.txt: Update.

- Switch to SHA256 (instead of MD5).
- Add back the files stats.

- From /etc/fluentbit_wendelin.so to /lib/libfluentbit_wendelin.so

- Add an option to statically link to attempt to link statically against the libraries.
- Add a todo list.

installation/metadata-collect-agent/Makefile: Add options for static libraries when a path is given for openssl or fmt respectively.

Replace the cloning of the fluentbit-output-plugin repository with a release from a tag so that it can work on OBS' VM.

Note: the WIP in the two previous commits works!

main.pyx: Replace fprintf(file, var) with fputs(var, file).
Makefile: Copy main.pyx and Cython+ directories if copying main.cpp fails.
installation/metadata-collect-agent/Makefile: Add the right CPPFLAGS.
Note: Maybe it should be CXXFLAGS?

Add debug and options in Makefiles.

Reason: OBS' VM has some -Werror= options causing the compilation to fail.

WIP: Add a mechanism to replace the shebang of parse_link_errors.py when the main Makefile is called with $PYTHON_PATH defined.
Warning: this is a quick but dirty fix and it should be made more standard asap!

installation/metadata-collect-agent/Makefile: Re-enable the $PYTHON_PATH and $INCLUDE_PYTHON arguments.

[Buildout partially WORKS] installation/metadata-collect-agent/Makefile: Reorganize the Makefile to make it work with more standard parameters.

TEST: installation/metadata-collect-agent/Makefile: Test some solutions to a link-time bug in the buildout compilation.

TEST: installation/metadata-collect-agent/Makefile: Test some solutions to a link-time bug in the buildout compilation.

WIP: installation/metadata-collect-agent/Makefile: Add generic management for fmtlib and openssl includes paths, in order to support buildouts.

installation/metadata-collect-agent/Makefile: Pass the python includes path to the Makefile in a more generic way in buildouts.