Add "openscobe" "closescobe" methods
Add usefull functions for add elements to table
Support logical expressions.
Tested matherials:
Sourse: ! a + b > 3 and c equ 0 or ( a - q ) equ 1
Poliz:    a b + 3 > not c 0 equ and a q - 1 equ or

Sourse: a > b or c equ d and a + 2 * b > c - 1
Poliz:    a b > c d equ a 2 b * + c 1 - > and or

Sourse: [ a > b ] or [ ( a + b ) / c < 0]
Poliz:    a b > a b + c / 0 < or