[vreg] move base registry implementation to logilab.common. Closes #1916014 A new logilab.common.registry module has been created with content from * cw.vreg (the whole things that was in there) * cw.appobject (base selectors and all). In the process, we've done some renaming: * former selector functions are now known as "predicate", though you still use predicates to build an object'selector * hence `objectify_selector` decorator is now `objectify_predicate` * the top level registry is now `RegistryStore` (was `VRegistry`) Also there is no more need for the @lltrace decorator. On the CubicWeb side, the `selectors` module has been renamed to `predicates`. There should be full backward compat with proper deprecation warnings.

     1

[MESSAGES CONTROL]

     2

disable-msg = C0301

     3

     4

[VARIABLES]

     5

# Enable / disable this checker

     6

enable-variables = yes

     7

additional-builtins = _, display_name

     8

     9

[BASIC]

    10

required-attributes=

    11

attr-rgx = (w|[a-z_][a-z0-9_]{2,30})

    12

variable-rgx = (w|[a-z_][a-z0-9_]{2,30})$

    13

argument-rgx = (w|[a-z_][a-z0-9_]{2,30})$

    14

    15

[TYPECHECK]

    16

generated-members=debug,info,notice,warning,error,critical,exception