ObjFW  Tags and Properties

Tags and Properties for Check-in 3e57593e8d

Context
2020-07-08
00:17
Merge trunk into branch "tagged-pointers" check-in: 3e57593e8d user: js tags: tagged-pointers
2020-06-29
19:42
runtime: Add helper functions for tagged pointers check-in: a964d3dcb4 user: js tags: tagged-pointers