Extend standard library

[WilliamRagstad]

Add functions such as:

• parseFloat(text)
• parseNumber(text) returns Float or Integer
• toChar(int)
• randomSeed(int) set random seed
• random() float from 0 to 1
• random(min, max) random integer between min and max
• random(list) pick a random element out of the list of choices
• hash(expr) hash the expression depending of its type

And features like:

• File IO
• JSON parser and serializer
• Networking, Sockets, HTTP GET and POST wrappers
• Threads
• Actor model
• Command line arguments parser