Merging Feat/selection

[GallVp]

• Closes TSEBRA does not eliminate iso forms when they have exact same scores #22
• Closes Purge liftoff transcripts which are marked with valid_ORF=False #18
• Closes Merge liftoff and BRAKER before eggnog mapper annotation step #16
• Closes Include eggnogmapper description in gff3 files #14
• Closes Drop support for BRAKER1 #9
• Closes TSEBRA should be executed to exclude all models without full intron support #8
• Closes BRAKER should not be executed when both RNASeq and Protein evidence are missing #7
• Closes Skip braker if braker outputs are provided through parameters #6
• Closes Purge braker predictions where liftoff annotations are available #5
• Closes Allow a masked assembly as input #4

[GallVp]

• Closes Eggnog hits with description '-' should not be filtered out. They should be labelled as 'PFAM: ...' or 'No eggnog description' #25
• Closes Check eggnogmapper threading performance on Linux/Slurm #10