Utilities: Add new utility for converting images to raw bitmap binaries

I used this utility to check if the possible TGA images' cases for
different origins (explictly the Y origin) are generating the same
bitmap, as I felt that my eyes are not a good-enough measurement tool
for this kind of task.
This might be useful in the future for testing other implementations so
I rather have this nice utility in our codebase.

Base/usr/share/man/man1/image2bin.md

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+## Name
+
+image2bin - convert an image to a binary bitmap
+
+## Synopsis
+
+```**sh
+$ image2bin <path-to-image>
+```
+
+## Description
+
+`image2bin` uses LibGfx to decode a specified image to a raw bitmap, so it could be stored
+in a raw binary format for further examination.
+
+## Examples
+
+```sh
+# Convert a PNG image to raw bitmap
+$ image2bin example.png > example.bin
+# Convert a JPG image to raw bitmap
+$ image2bin another_example.jpg > another_example.bin
+```