Add Bitwise Operations Support

[johndoe75]

Add support for bitwise operations directly in the command syntax, allowing users to perform AND, OR, XOR, and bit shift operations alongside the existing number base conversion functionality.

While nmx excels at number base conversion, developers frequently need to perform bitwise operations on numbers. Currently, users would need to:

• Convert numbers manually
• Use separate tools or calculators for bitwise operations
• Convert results back to desired format

This feature would make nmx a complete toolkit for number manipulation tasks commonly needed in systems programming, embedded development, and debugging.

Proposed Syntax

nmx "0x1f & 40"      # Bitwise AND
nmx "0x1f | 40"      # Bitwise OR  
nmx "0x1f ^ 40"      # Bitwise XOR
nmx "42 << 2"        # Left shift
nmx "42 >> 2"        # Right shift
nmx "~42"            # Bitwise NOT (unary)

Note: Quotes are required to prevent shell interpretation of special characters like & and |.

Expected Output

bash❯ nmx "0x1f & 40"
Expression: 0x1f & 40
Result: 8
Dec: 8
Hex: 0x8
Bin: 0b1000

❯ nmx "42 << 2"
Expression: 42 << 2
Result: 168
Dec: 168
Hex: 0xa8
Bin: 0b10101000

[johndoe75]

Wrongly closed