* rules/bio/ngs/variation/variation.rules: Update all rules
* rules/bio/ngs/popgen/angsd.rules: Update some rules
* workflows/bio/variation.workflow: Add
Merge tag 'baseconfigconverter' into develop

Remove BaseConfig statements in rules files
Remove BaseConfig statements
Merge branch 'feature/rewriterules' into develop

Conflicts:
	rules/bio/ngs/popgen/angsd.rules

Fix conflicts; update variation rules
Merge branch 'develop' into feature/variantcallingworkflow
* rules/bio/ngs/tools/gatk.rules: Remove add_section statements
* snakemakelib/config.py: Add conversions to BaseConfig
* test/test_config.py: Update test for init_sml_config
Merge branch 'hotfix/gatk-add-section'