[server.rqlannotation] rename SQLGenAnnotator to RQLAnnotator
This class is in charge of annotating the RQL syntax tree with
various bits of information, like (in)variance, use of
full-text-index, etc. It is a needed step before the generation
of SQL, but does not touch SQL directly. Hence RQLAnnotator
seems a better name.
### Requirements for tests in various cubicweb/**/test directories. ###
## shared by several test folders
docutils
webtest
## cubicweb/test
Pygments
pycryptodomex
#fyzz XXX pip install fails
## cubicweb/devtools/test
flake8
## cubicweb/hooks/test
psycopg2-binary
## cubicweb/pyramid/test
pyramid >= 1.5.0
waitress >= 0.8.9
wsgicors >= 0.3
pyramid_multiauth
repoze.lru
## cubicweb/sobject/test