[Feature] Add extensibility to Expression Value

[mrLSD]

Description

Add extensibility to Expression Value.

⭐ Motivation

To expand the possibilities of operating Expressions, a flexible representation of Expression Variables is necessary.
To do this, it is necessary to implement a general approach that would take into account the possibility of describing the AST for Expression Value, and for generating the corresponding instructions.

➡️ To do this, the following must be implemented:

• Generic trait binding for AST custom Expression Value
• Generic instruction for custom Expression Value instruction generation for SemanticStack