[distance] added missing include file
[extensions][offset] Let offset compile again.
Note: it does not generate correct offsets!
Merge branch 'develop' of github.com:boostorg/geometry into develop
[buffer] optionally simplify using ax strategy
[buffer][test] use Aimes to test simplify with ax strategy, optionally count number of self-ips
[buffer] add buffer_circle strategy for points and multi-points, and pass
it all the way through the dispatches
[buffer] changed comments
[buffer] removed non-used phase parameter
[buffer] removed many unnecessary includes from buffer_side