Enable Standard Point Positioning (SPP) computation

Enable the library to compute SPP positioning using RTKLIB library.

made the issue visible to everyone

created branch 2-enable-standard-point-positioning-spp-computation to address this issue

mentioned in merge request !1 (closed)

created merge request !1 (closed) to address this issue

closed

mentioned in merge request !2 (merged)

mentioned in commit e964b446

mentioned in merge request !4 (merged)