Rbfgs

[jdtuck]

Rewrite of RBFGS code from MATLAB.

• [x] Test module
• [x] add to optimum_reparam
• [x] add options to fdawarp
• [x] add to elastic_distance
• [x] add to fdacurve
• [x] add to elastic_distance_curve

[codecov[bot]]

Codecov Report

Merging #14 into master will increase coverage by 1.83%. The diff coverage is 41.19%.

@@            Coverage Diff             @@
##           master      #14      +/-   ##
==========================================
+ Coverage    8.57%   10.41%   +1.83%     
==========================================
  Files          15       16       +1     
  Lines        4278     4551     +273     
==========================================
+ Hits          367      474     +107     
- Misses       3911     4077     +166     

Impacted Files	Coverage Δ
fdasrsf/curve_functions.py	9.04% <27.77%> (+0.08%)	:arrow_up:
fdasrsf/time_warping.py	4.04% <40.00%> (ø)
fdasrsf/rbfgs.py	41.22% <41.22%> (ø)
fdasrsf/utility_functions.py	19.95% <46.42%> (+0.17%)	:arrow_up:
fdasrsf/curve_stats.py	9.13% <60.00%> (ø)