Enhance IdKwargs

1. rewrite IdKwargsPair.str
2. supports custom metavar

Nested Namespace

1. parser.add_argument 可以用 dest=a.b.c 來 nested set attribute

Subaction of IdValuePair and IdKwargs

1. remove AppendIdValuePair and StoreIdKwargs
2. add IdValuePair and IdKwargs
   both supports store and append by feeding sub_action argument when parser.add_argument
3. replace eval of kwargs parsing by ast.literal_eval for security issue
   never supports builtin functions again

Fix StoreIdKwargs split_token

set default split_token to ,

StoreIdKwargs Action

• StoreIdKwargs Action
  1. for (id, kwargs) tuple
  2. kwargs can be parsed from formatted string like a=2&b=3

First Release

• YoctolFormatter
  • support type metavar without __name__ attribute
  • underline choices
• YoctolArgumentParser
  • use YoctolFormatter as default formatter_cls
• AppendIdValuePair (Action)
  • for (id, value) tuple
  • separately apply choices on id, type on value
• types
  • add int/float_in_range, path types