Implement i-EIP method

[shoubhikraj]

Improved Elastic Image Pair method

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Checklist

• [x] The changes include an associated explanation of how/why
• [ ] Test pass
• [ ] Documentation has been updated
• [ ] Changelog has been updated

[codecov[bot]]

Codecov Report

Merging #283 (652941b) into v1.4.1 (4d66675) will decrease coverage by 1.07%. Report is 2 commits behind head on v1.4.1. The diff coverage is 34.28%.

:exclamation: Current head 652941b differs from pull request most recent head fc4198f. Consider uploading reports for the commit fc4198f to get more accurate results

@@            Coverage Diff             @@
##           v1.4.1     #283      +/-   ##
==========================================
- Coverage   97.33%   96.26%   -1.07%     
==========================================
  Files         203      205       +2     
  Lines       22438    22829     +391     
==========================================
+ Hits        21839    21977     +138     
- Misses        599      852     +253     

Flag	Coverage Δ
unittests	96.26% <34.28%> (-1.07%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
autode/bracket/ieip.py	0.00% <0.00%> (ø)
autode/path/interpolation.py	84.84% <84.84%> (ø)
autode/bracket/base.py	96.00% <100.00%> (ø)
tests/test_path.py	100.00% <100.00%> (ø)

... and 2 files with indirect coverage changes