Improve/injection with xcode10

[zenangst]

• Adds dirty view controller matching as a fallback if view controller cannot be determined using type checking
• Remove .bundle from pattern check to see if injection is already loaded.

[codecov-io]

Codecov Report

Merging #45 into master will decrease coverage by 0.28%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master      #45      +/-   ##
==========================================
- Coverage   27.83%   27.55%   -0.29%     
==========================================
  Files          16       16              
  Lines         388      392       +4     
==========================================
  Hits          108      108              
- Misses        280      284       +4

Impacted Files	Coverage Δ
Source/Shared/Injection.swift	28.42% <0%> (-1.25%)	⬇️

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