static_value bool implementation

[DigiH]

static_value bool implementation and MUE4094RT decoder adjustment

as per discussion

#90

and testing with various variations, a static_value property value was always published as a string. This now makes static_value bool results possible, only if the static_value definition is NOT definded as a string, i.e.

      "pres":{
         "decoder":["static_value", true],
         "is_bool":1
      },

      "pres":{
         "decoder":["static_value", false],
         "is_bool":1
      },

now resulting in

"pres":true … "pres":false

Amended the MUE4094RT as well, but couldn't really create proper test cases, as I don't have realistic servicedata samples, but working as expected in the SwitchBot Curtain change

DigiH@7090b79

Checklist:

• The pull request is done against the latest development branch
• Only one feature/fix was added per PR and the code change compiles without warnings
• I accept the DCO.

[1technophile]

LGTM

[1technophile]

Thanks