Clear nodes effect and default node expression!

This small release adds two main syntaxes:

• Clear nodes effect, you can now delete every content of your file through a simple effect.

• Default values of nodes, which is for advanced users:

This new expression (get [the] [value] %string% (of|from|in) [the] [file] %string% or [(1¦set)] [default] [to] %objects%) will allow you to manage nodes value even easier:

Example code:

clear nodes of "config"

set {_v::*} to get "test" of "config" or default "hello" and "dsqqsd"
send "%{_v::*}%" to console

set {_v::*} to get "test2" of "config" or set default "hello" and "dsqqsd"
send "%{_v::*}%" to console

YAML result:

test2: 
- hello
- dsqqsd

Console result: