Now everything under _match_one_pattern can ignore them. This also means
that we can use the cache to return the same results for 'foo' and '!foo'.

There are no code changes; this is committed separately so as to make
the subsequent "real" diffs easier to read.

remove defaults from inhertiable fieldattributes to allow for proper detection and override

added block environment test

Speed up execution

`if method in dir(self):` is very inefficient:

- it must construct a list object listing all the object attributes & methods
- it must then perform a O(N) linear scan of that list

Replace it with the idiomatic `if hasattr(self, method):`, which is a
O(1) expected time hash lookup.

Should fix #11981.

fixes #12055

Fixes #12011

cloudstack: more integration tests and updates

Revert "Add PowerShell exception handling and turn on strict mode."

Apart from ansible-vault create, every vault subcommand is happy to deal
with multiple filenames, so we can check that there's at least one, and
make create check separately that there aren't any extra.

Add PowerShell exception handling and turn on strict mode.

draft bsd intro and bootstrapping

made squashable with_ plugin list configurable

Fix a parsing bug that prevents IPv6 addresses from being used with add_host

Closes #8682

* Add exception handling when running PowerShell modules to provide exception message and stack trace.
* Enable strict mode for all PowerShell modules and internal commands.
* Update common PowerShell code to fix strict mode errors.
* Fix an issue with Set-Attr where it would not replace an existing property if already set.
* Add tests for exception handling using modified win_ping modules.