Keep the catalog derivable from master after the E writers and the circular-buffer names

[estebanzimanyi]

Keep the plain hex-WKB reader and writer as the codec of a class having both

MobilityDB 2510e750d0 gives cbuffer, npoint, nsegment, pose, posechain, stbox and tpcbox an
E writer beside the plain one, cbuffer_as_hexewkb beside cbuffer_as_hexwkb. One pattern of the
encoding table, as_hex?e?wkb, matched both, so #keyed of parser/codecs.py ranked them alike,
each serving one SQL type, and stopped the catalog: "type encodings that contradict
themselves: Cbuffer: cbuffer written by cbuffer_as_hexewkb and cbuffer_as_hexwkb", and so for
the six others. Every binding provisioning from master fails at that step, MobilitySpark main
among them.

The encoding tables of parser/enrich.py now state the plain hex-WKB pattern before the E one,
for the writers and the readers alike, so a class having both keeps the plain pair as its
codec, the one it stated before: the variant its send binds already decides whether the bytes
carry the SRID. A class having only the E pair, GSERIALIZED, keeps it. Each function is
classified under the same encoding as before; only the rank of the two patterns differs.

Witness: over the installed headers of a libmeos built from MobilityDB master 881945dca9,
run.py exits 1 with the seven contradictions above.

Measured over the same headers: run.py derives the catalog, 5149 functions; the seven classes
state their plain *_as_hexwkb writer and *_from_hexwkb reader, with the variant their send
binds, and GSERIALIZED its HexEWKB readers and writer. tests/test_codecs.py states the rank
over a class having both pairs, failing without the change.

Read the class-prefixed name of the static circular-buffer containment

MobilityDB 881945dca9 names the six relationships between two circular buffers by their class,
as every other static function of a base type is named: contains_cbuffer_cbuffer is
cbufferContains, declared as CREATE FUNCTION cbufferContains(cbuffer, cbuffer) in
mobilitydb/sql/cbuffer/200_cbuffer.in.sql. test_sqlfn_deployed.py reads that name over the
catalog generated from master, where it read cbuffer_contains.

Measured over the catalog derived from master 881945dca9: the suite passes, 484 tests, 25
skipped for want of a MobilityDB source tree or installed headers, which CI provides.