add methods to interpret names like "Trifolium.pratense" -> "Trifolium pratense"

[jhpoelen]

Currently, "globi-correct" matcher produces:

$ echo -e "\tTrifolium_pratense" | nomer append globi-correct
Trifolium_pratense SAME_AS Trifolium pratense

However, with

$ echo -e "\tTrifolium.pratense" | nomer append globi-correct
Trifolium.pratense SAME_AS Trifolium

is produced.

suggest to modify the functionality to make

$ echo -e "\tTrifolium.pratense" | nomer append globi-correct
Trifolium.pratense SAME_AS Trifolium preterse

related to globalbioticinteractions/globalbioticinteractions#630 .fyi @zedomel .

[jhpoelen]

For next release, the following will be available:

$ echo -e "\tTrifolium.pratense" | nomer append globi-correct
	Trifolium.pratense	SAME_AS		Trifolium pratense