[ImDebugger] Enable Memory Search in the ImMemView Widget

[gooosedev]

This PR enables basic support for the search in memory view widget
I used the already existing search code as a base.

It adds a few controls above the hexview rather than using a dialog box

currently the following search are supported:

• int/uint 8/16/32/64
• float
• string
• bytes sequence following this format: "AA BB CC"

[hrydgard]

This is cool. Two things:

From an architecture perspective, maybe the UI should actually belong to the surrounding window rather than the MemView itself? Could just call methods on the MemView to set the search.

When making UI PRs, please provide screenshots for quick evaluation :)

[hrydgard]

It's still in draft mode - is it ready for review?

[hrydgard]

I'll check it out soon, just got suddenly swamped with bug reports :)

[anr2me]

Btw, is the float only for single-precision? or double-precision too? in case there are games that use double-precision to store value that need higher precision, less likely but possible.

[gooosedev]

Thanks for the feedback,
for now I've only considered single precision, as the PSP was built with a single precision FPU, but if needed I'll add double precision too.

[hrydgard]

There is some soft-fpu use of double in games, but of course much less than actual floats. So not sure if worth adding to a searcher.

[hrydgard]

To fix the Windows error, on this line:

enum MemorySearchType {BITS_8, BITS_16, BITS_32, BITS_64, FLOAT, STRING, STRING_16, BYTESEQ};

Rename FLOAT to FLOAT_32 to avoid clashing with some Windows typedef (ugh).

Maybe also rename BYTESEQ to BYTE_SEQ for consistency with the others.

Also maybe throw the Search UI into a ImGui::CollapsibleHeader.

After that, I'm happy to merge!