Log message:
(time/R-sftime) Updated 0.2.0 to 0.3.0

# sftime 0.3.0

* Add a dedicated `tidyr::drop_na()` method for `sftime` objects. (See
  the same recent addition for `sf` objects
  [#1975](https://github.com/r-spatial/sf/pull/1975/)).

* Add a dedicated `dplyr::dplyr_reconstruct()` method for `sftime`
  objects.  Relying on the method for `sf` objects caused erroneously
  column binding when the second object was a data frame without
  conflicting column names for the `sf` and time columns. In this case,
  a `sf` objects was returned, even though an `sftime` object should be
  returned. See also
    https://github.com/r-spatial/sf/issues/1958#issuecomment-1181982244.

* Add methods to convert `sftime` objects from:
  + Objects from the `spatstat` package classes (`ppp`, `psp`, `lpp`)
  + `sftrack` and `sftraj` objects from the `sftrack` package.
  + `cubble_df` objects from the `cubble` package.

* Bug fix in `st_time<-.sftime`:
  + Still contained references to the old `tc`class.
  + Did not allow to give the active time column a character vector as value.

Log message:
R-sftime: comment out invalid LICENSE string

Log message:
time/R-sftime: import R-sftime-0.2.0

Classes and methods for spatial objects that have a registered time
column, in particular for irregular spatiotemporal data. The time
column can be of any type, but needs to be ordinal. Regularly laid out
spatiotemporal data (vector or raster data cubes) are handled by
package 'stars'.