Add tests for medium size FASTA
Refactor FASTA indexer
Fix #1
Add `graph?` function which equals to C's `isgraph`
Refactor FASTA-related codes
Add `clam.fasta/read-sequences` function
Fix #1
Merge remote-tracking branch 'origin/fix-fasta-index'
Add file diff check
Fix dict creating
Add tests for cljam.dict
Add type hints to return value of reader/writer functions

To avoid reflections when using them with `with-open` macro
Add build status image
Use pandect for calculating hash
Separate decode features