Berry add searchall() and matchall() to re module and pre-compiled patterns

[s-hadinger]

Description:

Berry add matchall() and searchall() to pre-compiled patterns:

• <rr>.searchall(hay:string [, limit:string]) -> list(list(string)): returns the list of searches. limit allows to limit the number of matches
• <rr>.matchall(hay:string [, limit:string]) -> list(list(string)): returns the list of matches. limit allows to limit the number of matches.
• searchall: pattern can match anywhere. matchall: pattern must match one after the other

import re
var rr = re.compile('<([a-zA-Z]+)>')

r = rr.searchall('<abc> yeah <xyz>')
# [['<abc>', 'abc'], ['<xyz>', 'xyz']]

r =  rr.matchall('<abc> yeah <xyz>')
# [['<abc>', 'abc']]

r =  rr.matchall('<abc><xyz>')
# [['<abc>', 'abc'], ['<xyz>', 'xyz']]
# there is no gap between each match

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.4.9
• The code change is tested and works with Tasmota core ESP32 V.2.0.7
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass