Add ability to parse (HEX)WKB

[strk]

When facing robustness issues (like in #92) writing a testcase requires very precise coordinates.
Being able to parse WKB would allow copying such coordinates with full precision from other datastores (ie: postgis)

[danielcu888]

@strk would test inputs written using WKT in fractional form suffice?

[strk]

On Fri, May 29, 2020 at 03:55:02AM -0700, Daniel Cumberbatch wrote: @strk would test inputs written using WKT in fractional form suffice?

Without reading the full ticket, "parse" WKB seem to require inputs in WKB, not WKT ...

[danielcu888]

Sorry @strk, my mistake. I meant to place that comment in the causing ticket #96 to add unit tests.