Improved ASM Output and Custom Label Naming

[hxm-cpp]

it would be beneficial to enhance the current functionality by adding the following features:

1. Display Unencoded Instructions: It would be great if the assembler could provide an option to print the raw, unencoded instructions along with the assembled output. in example je LABEL_XXX
2. Custom Label Naming: Adding the ability to assign custom names to labels would improve the flexibility too.