Update transpiler to allow generate non asm solidity code

[hgedia]

Changes

• Allow zkllvm-transpiler to take an additional flag no-asm which skips a generation of yul/assembley code and outputs pure solidity.
• the flag -no-asm works only with optimise-gates and only updating that branch of the code in the transpiler to keep changes localised, but can update other branches if there is a reason.

Testing

• Tested with arithmetic circuit flow and validated in EVM verifier
• Not all flows have been tested as transpilation flow depends on circuit arguments (ex : rotation set to true for circuits which require it, same for public inputs etc).

zkllvm changes here : NilFoundation/zkLLVM#173 (to be merged after this is approved)