add optional input dir for aimec analysis

[awirb]

• add optional input directory where to look for files for aimec analysis
• add option to create mass plot if only one sim
• fix axes label in mass plot
• add relTh .asc files for fetchInputData function

[codecov]

Codecov Report

Patch coverage: 65.51% and project coverage change: +0.02% 🎉

Comparison is base (5d72afe) 73.68% compared to head (a24311d) 73.70%.
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #896      +/-   ##
==========================================
+ Coverage   73.68%   73.70%   +0.02%     
==========================================
  Files          63       63              
  Lines       14408    14446      +38     
==========================================
+ Hits        10616    10648      +32     
- Misses       3792     3798       +6     

Files Changed	Coverage Δ
avaframe/in1Data/getInput.py	87.63% <0.00%> (-1.30%)	⬇️
avaframe/ana3AIMEC/aimecTools.py	81.65% <75.00%> (-0.13%)	⬇️
avaframe/ana3AIMEC/ana3AIMEC.py	68.57% <75.00%> (-0.18%)	⬇️
avaframe/ana3AIMEC/dfa2Aimec.py	84.11% <100.00%> (ø)
avaframe/out3Plot/outAIMEC.py	84.94% <100.00%> (+0.05%)	⬆️

... and 4 files with indirect coverage changes

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[fso42]

As discussed, please add a description of the filenames for the AIMEC analysis.

[codeclimate]

Code Climate has analyzed commit a24311d and detected 1 issue on this pull request.

Here's the issue category breakdown:

Category	Count
Complexity	1

The test coverage on the diff in this pull request is 67.8% (50% is the threshold).

This pull request will bring the total coverage in the repository to 73.7% (0.1% change).

View more on Code Climate.