fix: Workaround Non-Threadsafe Use of `Rc` in `bam::record::Record`#345

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jch-13 wants to merge 2 commits intorust-bio:masterfrom

jch-13:workaround_rc

Commits on Feb 2, 2022

Workaround Non-Threadsafe Part of `bam::record::Record`
jch-13
committed

Commits on Feb 3, 2022

Remove unneeded `Rc` wrappers around `bam::record::HeaderView`s
jch-13
committed