[FEATURE] Break var_statement function into further sub functions

[frankhart2018]

Describe the solution you'd like The current implementation of var_statement function which is responsible for parsing variable and array declaration with or without assignment is too long and can be broken into further parts - variable, pointers, arrays.

[Kamal4126]

I would like to work on this issue .

[frankhart2018]

Sure assigning this to you @Erzmafia.