Bug fix plot bambu

[cying111]

• bug fix for plotPCA where PC percentage are corrected as pointed out by issue #383
• add gene annotation plot on top of transcript annotation as requested by issue #239

[codecov-commenter]

Codecov Report

Merging #384 (e736630) into devel (4178499) will increase coverage by 0.01%. The diff coverage is 100.00%.

:exclamation: Current head e736630 differs from pull request most recent head 1197ad0. Consider uploading reports for the commit 1197ad0 to get more accurate results

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@@            Coverage Diff             @@
##            devel     #384      +/-   ##
==========================================
+ Coverage   86.31%   86.32%   +0.01%     
==========================================
  Files          24       24              
  Lines        3222     3226       +4     
==========================================
+ Hits         2781     2785       +4     
  Misses        441      441              

Files Changed	Coverage Δ
R/plotBambu_utilityFunctions.R	87.61% <100.00%> (+0.49%)	:arrow_up:

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