Locale Support

[mfriesen]

add API endpoint such as

POST /sites/{siteId}/locales to support different locals.

So GET /attributes/{attributeKey}/allowedValues

can expand the results to also return locale information such as
{
"allowedValues":[
"A","B", "C"
],
"locale":{
"en":{
"A":"AAAAA",
"B":"BBBBB",
"C":"CCCCC"
}
}
}

DynamoDB

PK: locale#default
SK: attr#documentType#allowedValue#A
value: "AAAAA"

PK: locale#fr
SK: attr#documentType#allowedValue#A
VALUE: "BBBB"