Wang–Müller line simplification algorithm in PostGIS

Motiejus Jakštys f3393d8819 shorten test		2021-05-19 22:57:45 +03:00
db	more elaborate test cases	2021-05-19 22:57:45 +03:00
notes.txt	a line is a full bend now	2021-05-19 22:57:45 +03:00
tests.sql	shorten test	2021-05-19 22:57:45 +03:00
wm.sql	clean up debugging and test output	2021-05-19 22:57:45 +03:00