Add a sub-package "time series" into PlantCV

[DannieSheng]

Describe your changes A brand new sub-package called "time series" was added to PlantCV. This package is different from most functions already in PlantCV, it deals not with single images, but a series of images. Related documentation, tests, and test data are also updated.

class InstanceTimeSeriesLinking (methods are called by the methods inside the parentheses )

(checklist for whether have tests covered)

class methods:

• [x] save_linked_series
• [x] import_linked_series
• [x] link_t (link)
• [x] link
• [x] update_ti
• [ ] link_dist_t (link_dist)
• [ ] link_dist

static methods:

• [x] get_link(_update_ti, link_t,link_dist_t)
• [x] compute_overlaps_weights(link_t , _update_ti)
• [x] get_sorted_uids(link, link_dist)
• [x] get_uids_from_ti(_update_ti)
• [x] get_emerg_disap_info(get_ti,_update_ti)
• [x] get_ti(link,link_dist)
• [x] get_li_from_ti
• [x] area_tracking_report(link,update_ti)
• [x] visualize
• [x] _update_ti(update_ti)
• [ ] compute_dist_weights (link_dist_t)

Type of update Is this a:

• New feature or feature enhancement
• Update to documentation
• Work in progress

[codecov[bot]]

Codecov Report

Merging #587 (ee13562) into visualize_show_instances (7979d0e) will not change coverage. The diff coverage is 100.00%.

:exclamation: Current head ee13562 differs from pull request most recent head ce3c5bf. Consider uploading reports for the commit ce3c5bf to get more accurate results

@@                     Coverage Diff                     @@
##           visualize_show_instances      #587    +/-   ##
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  Coverage                    100.00%   100.00%            
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  Files                           146       149     +3     
  Lines                          6737      7061   +324     
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+ Hits                           6737      7061   +324     

Flag	Coverage Δ
unittests	100.00% <100.00%> (ø)

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

Impacted Files	Coverage Δ
plantcv/plantcv/__init__.py	100.00% <ø> (ø)
plantcv/plantcv/visualize/__init__.py	100.00% <ø> (ø)
plantcv/plantcv/time_series/__init__.py	100.00% <100.00%> (ø)
plantcv/plantcv/time_series/evaluation.py	100.00% <100.00%> (ø)
plantcv/plantcv/time_series/time_series_linking.py	100.00% <100.00%> (ø)
plantcv/__init__.py	100.00% <0.00%> (ø)