RPM package spec and build script

[alkavan]

This needs to be added to instructions required for faad2-libs:

sudo dnf install \
  https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 97.57%. Comparing base (7259741) to head (4b7ed88). Report is 7 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #147   +/-   ##
=======================================
  Coverage   97.57%   97.57%           
=======================================
  Files         150      150           
  Lines       16649    16649           
=======================================
  Hits        16246    16246           
  Misses        403      403           

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[mosra]

Merged as bfab5712c6fef7c34f5aff43f592409526239ce2, thanks a lot!