adding new overloads to IOUtils with Path for some file only methods

[lbergelson]

Description

Add Path overloads of some functions in IOUtil that were missing them.
Fixes #1294

Checklist

• Code compiles correctly
• New tests covering changes and new functionality
• All tests passing
• Extended the README / documentation, if necessary
• Is not backward compatible (breaks binary or source compatibility)

[codecov-io]

Codecov Report

Merging #1296 into master will increase coverage by 0.234%.
The diff coverage is 61.538%.

@@               Coverage Diff               @@
##              master     #1296       +/-   ##
===============================================
+ Coverage     67.508%   67.742%   +0.234%     
- Complexity      8148      8332      +184     
===============================================
  Files            557       560        +3     
  Lines          33384     33883      +499     
  Branches        5631      5751      +120     
===============================================
+ Hits           22537     22953      +416     
- Misses          8662      8727       +65     
- Partials        2185      2203       +18

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/htsjdk/samtools/util/IOUtil.java	57.606% <61.538%> (+0.463%)	118 <11> (+3)	⬆️
...samtools/util/AsyncBlockCompressedInputStream.java	72% <0%> (-4%)	12% <0%> (-1%)
...ava/htsjdk/samtools/CRAMContainerStreamWriter.java	70.612% <0%> (-0.289%)	54% <0%> (ø)
...dk/samtools/util/IntervalCoordinateComparator.java	58.333% <0%> (ø)	6% <0%> (?)
.../main/java/htsjdk/samtools/util/IntervalCodec.java	79.412% <0%> (ø)	8% <0%> (?)
.../java/htsjdk/samtools/util/IntervalListWriter.java	88% <0%> (ø)	5% <0%> (?)
...rc/main/java/htsjdk/samtools/util/BinaryCodec.java	70.183% <0%> (+0.459%)	57% <0%> (+1%)	⬆️
src/main/java/htsjdk/samtools/BAMFileReader.java	68.665% <0%> (+0.817%)	52% <0%> (+1%)	⬆️
src/main/java/htsjdk/samtools/util/Interval.java	63.636% <0%> (+1.818%)	26% <0%> (+1%)	⬆️
src/main/java/htsjdk/samtools/util/StringUtil.java	70.936% <0%> (+1.97%)	73% <0%> (+2%)	⬆️
... and 4 more

[yfarjoun]

can you somehow check that the zipped files are really zipped and that the plaintext ones are really plaintext?

[lbergelson]

done

[lbergelson]

@yfarjoun I responded to your comments, good to go?

[yfarjoun]

no need for final in TWR..also spaces