seds: starting to play around with the json conversion
seds: adding value and alarm for VNumber conversion
seds: introducing an extended builder
seds: moving alarm/time serialization to common parser
seds: adding helper method for adding object
seds: adding display; NaN/Infinite is serialized as null
seds: supporting all VNumber serialization; actually testing the serialized form
seds: adding VBoolean support
seds: adding VString support
json: renaming seds to json
json: adding VEnum support