regen: regenerate the MEOS facade against the consolidated MobilityDB surface

Bump codegen/input/meos-idl.json to the MEOS-API IDL generated from the
consolidated MobilityDB headers and regenerate functions.GeneratedFunctions.
The surface covers the full streaming-consumer needs without gaps: the temporal
multiplication binds as mul_* (including the tbigint family), the set-set
spatial distance functions mindistance_tgeo_tgeo and tgeoarr_tgeoarr_mindist are
exposed, the circular-buffer and network-point MF-JSON readers tcbuffer_from_mfjson
and tnpoint_from_mfjson are exposed, and the rigid-geometry accessors bind as
trgeo_*. 2743 functions.

Author: estebanzimanyi