[buffer] rename variables
[buffer] test: remove old code and instead add 3 parcels
which went wrong earlier or still have issues
[buffer] test - indentation, remove old comment
[buffer] skip the type-check for adjacent pieces and side-pieces,
because now sides around a concave vertex have a piece in between
[buffer][test] SVG enhancements
[buffer] fix limit which was too low for LatLong coordinates. Also fix in test
for tolerance which was too high. Added unit test
[buffer] Refactor duplicate functionality into one function
[buffer] pass robust policy through the buffer_inserter structs
[buffer] use passed first
[buffer] use robust policy to check equality
Merge branch 'develop' of github.com:boostorg/geometry into develop