added time delays and observer times for time series predictions

[sibirrer]

No description provided.

[sibirrer]

Hi @nkhadka21, I made two routines for the time delay prediction. Make sure you understand those or otherwise let me know

[codecov]

Codecov Report

Merging #52 (925d0e2) into agn_sources (d56705e) will increase coverage by 0.56%.
Report is 1 commits behind head on agn_sources.
The diff coverage is 100.00%.

Additional details and impacted files

@@               Coverage Diff               @@
##           agn_sources      #52      +/-   ##
===============================================
+ Coverage        72.38%   72.94%   +0.56%     
===============================================
  Files               19       19              
  Lines              840      850      +10     
===============================================
+ Hits               608      620      +12     
+ Misses             232      230       -2     

Files Changed	Coverage Δ
sim_pipeline/galaxy_galaxy_lens.py	83.64% <100.00%> (+1.78%)	⬆️

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