Proxy Classes Have Numeral in Class Name - won't compile

[cable002]

My output's proxy classes are coming out with numeric names like
"export class 3Proxy"
The typescript compiler doesn't accept them - I'm using
"target": "es2015", in tsconfig.json

I'd change them to alpha but there are over 37 sets of them.
The source json is the response from Merriam-Webster Spanish Dictionary lookup,
a very complex json object.

[RobertjanTuit]

Proposed fix: #26
You can point your package to https://github.com/RobertjanTuit/MakeTypes temporarily to use until is merged