[doc] Extended doc for WKT
[doc][wkt] update of conformance sections
[buffer] fix for update get_turns
[buffer] fix for changed name geometry_multi_within_coe to point_in_geometry
[rescale] fix for points / empty boxes
[buffer] rename m_rescale_policy to m_robust_policy
Merge branch 'develop' of https://github.com/boostorg/geometry into feature/disjoint