Issue title: [BUG]：bedtools genomecov -ibam kma.bam error
 Issue body: **Describe the bug**
bedtools genomecov -ibam kma.bam error:
ERROR: Invalid Cigar op type

 Comments: 
 Comment 0: just bedtools too old
{'source': 'GithubIssues', 'repo_name_with_owner': 'arpcard/rgi', 'issue_id': 651309136, 'repo_stars': 212.0}