Add new methods for SpatVectors

[dieghernan]

See #84

New methods:

• arrange()
• glimpe() (also for SpatRasters).
• distinct() (re-check)
• *_join()
• group_*()
• summarise()
• count()/tally()

Added also a bunch of new coercing and helper functions:

• as_spatvector()
• as_sf()
• is_grouped_spatvector()

Also need to:

• Complete tests

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.21 🎉

Comparison is base (981e794) 99.28% compared to head (32c50b2) 99.49%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #82      +/-   ##
==========================================
+ Coverage   99.28%   99.49%   +0.21%     
==========================================
  Files          28       40      +12     
  Lines        1670     1984     +314     
==========================================
+ Hits         1658     1974     +316     
+ Misses         12       10       -2     

Impacted Files	Coverage Δ
R/as_spatraster.R	98.52% <ø> (-0.12%)	⬇️
R/autoplot-Spat.R	100.00% <ø> (ø)
R/drop_na-Spat.R	100.00% <ø> (ø)
R/fortify-Spat.R	100.00% <ø> (ø)
R/pull-Spat.R	100.00% <ø> (ø)
R/relocate-Spat.R	100.00% <ø> (ø)
R/rename-Spat.R	100.00% <ø> (ø)
R/replace_na-Spat.R	100.00% <ø> (ø)
R/select-Spat.R	100.00% <ø> (ø)
R/slice-Spat.R	100.00% <ø> (ø)
... and 16 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.