Matcher parity with Unity

[malsyned]

Mostly this is about floating point matching and one-dimensional arrays for built-in types, I think.

[malsyned]

equal ints, various sizes
equal uints, various sizes
equal uints with hex printing, various sizes
not equal
whether certain bits are set, cleared, or equal to a mask in another int
greater than, various integer sizes, signednesses, and hexnesses
less than, various integer sizes, signednesses, and hexnesses
within, various integer sizes, signednesses, and hexnesses
equal pointers
equal strings
equal snstrings
equal memory
equal int arrays, various sizes, signednesses, and hexnesses
equal pointer arrays
equal string arrays
equal memory arrays
arrays where all elements match an int of various sizes, signednesses, and hexnesses
arrays where all elements match a pointer
arrays where all elements match a string
arrays where all elements match a memory buffer

within, floats (printing should include +/- inf, NaN)
array of floats within

within, doubles
array of doubles within

[malsyned]

Maybe we want to implement some wrapper functions to get the convenience of Unity in simple assertions? Like

assert_equal_hex16(expected, actual);
/* => */ assert_that("", as_hex(the_u16(actual)), is(as_hex(the_u16(expected))));