disasmarm.d now can be a standalone program

[Walter Bright]

On 9/4/2024 10:31 PM, Richard (Rikki) Andrew Cattermole wrote:
> At this rate we'll have our own objdump before a years end! (Year unspecified)

We already have obj2asm, which does the same thing as objdump, and incorporates 
disasmarm. obj2asm already decodes ARM object files.

But objdump/obj2asm work off of .o files, which are not useful for looking at 
individual encodings, and don't provide a URL for the spec.