Support custom promise as remote value

[ScriptedAlchemy]

Currently I support a single string syntax as the input. Remote: global@url

Adding support for a promise new promise value would enable managed modules and other at runtime decisioning

Remote: “promise new Promise(res=>{
 fetch(‘someapi’�).then(()=>{
 Return ‘global@http://‘ 
}).then((dynamicConfig)=>{
Res(dynamicConfig)
})
})”

The idea here is that i still end up returning the current @ string syntax to the internal plugin mechanism. So all other parsing and setup can still be done, but would provide a functional way to determine what the string should be