New chunked mapping subworkflows

[prototaxites]

Implement chunked mapping pipelines for:

• Illumina Hi-C data in CRAM format
• long read data in CRAM format
• long read data in FASTX format
• Illumina short read data in CRAM format
• Illumina RNA-Seq data in CRAM format

[prototaxites]

#49

[prototaxites]

#97 - chunked mapping of FastX files using pyfastx for random access.