BUG: print statement in `match_neighborhood` triggered when nearest neighbor is more than 0.25degC from target window.

[abigailsnyder]

This block of code:
https://github.com/JGCRI/stitches/blob/main/stitches/fx_match.py#L314-L352
designed to print a statement if there are target windows more than 0.25degC away from Nearest Neighbor in T-dT space so user knows further validation likely warranted.

Problem:
When match_neighborhood gets called within make_recipe, this print statement causes the same row to repeat several times in the recipe dataframe. gmat_stitching (

stitches/stitches/fx_stitch.py

Line 411 in cb8d6ca

def gmat_stitching(rp):

) handles it fine because it's operating on basic dataframes and calls drop duplicates. gridded_stitching does not because it tries to write into the same block of an xarray-structure because there is no drop_duplicates call to the recipe there.

Fix:

1. have make_recipe (https://github.com/JGCRI/stitches/blob/cb8d6ca10c66292a3824435e12a4335e070946cf/stitches/fx_recipe.py#L1023C5-L1023C17) do a final call to drop duplicates before returning the recipe

2. revise match_neighborhood block to use a package-messaging specific function rather than print, and streamline so that it is just a single message of words if any target window is further away than 0.25 from its nearest neighbor, rather than printing the data frame every time.