findfirst and haskey for IntervalCollection

[dcjones]

Adds a findfirst and haskey function to IntervalCollection that both look for exact (start, end, and strand) matches.

[codecov-io]

Codecov Report

Merging #472 into master will increase coverage by 0.02%. The diff coverage is 80.95%.

@@            Coverage Diff             @@
##           master     #472      +/-   ##
==========================================
+ Coverage   64.72%   64.74%   +0.02%     
==========================================
  Files         166      166              
  Lines       11353    11374      +21     
==========================================
+ Hits         7348     7364      +16     
- Misses       4005     4010       +5

Impacted Files	Coverage Δ
src/intervals/intervalcollection.jl	86.09% <80.95%> (-0.84%)	:arrow_down:
src/intervals/interval.jl	90.66% <0%> (-1.34%)	:arrow_down:

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[dcjones]

Should I be making PRs like this against GenomicFeatures.jl? I kind of lost track of what the plan is.

[TransGirlCodes]

@dcjones Yeah GenomicFeatures.jl and IntervalTrees.jl (if applicable). As Bio.jl is being de-monolithed, and GenomicFeatures has had it's first METADATA release :)

[dcjones]

Ok, cool. :+1: