fix: allow leading deletions in read_pos method of CigarStringView.

[johanneskoester]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 11799067967

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 2 (0.0%) changed or added relevant lines in 1 file are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.03%) to 79.66%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/bam/record.rs	0	2	0.0%

Files with Coverage Reduction	New Missed Lines	%
src/bam/record.rs	1	77.45%

Totals
Change from base Build 9223286963:	-0.03%
Covered Lines:	2483
Relevant Lines:	3117

---

💛 - Coveralls