[meta] Choose and alter wildcard scope to reflect replacement length

What do you folks think about changing the subscopes of `constant.other.wildcard` from the character used to the semantic meaning? This would let color schemes distinguish on what a wildcard does rather than what character it uses. - Remove `.asterisk`, `.questionmark`, `.underscore`, `.percent`, etc. - Replace with something like this (feel free to suggest better words)… + `.character` to indicate "This represents one char" + `.string` to indicate "This represents a variable-length string" ### Possible downsides - Is it important to distinguish wildcards that mean zero-or-more characters versus ones that mean one-or-more characters? - Wildcards (if any) that mean a particular length of characters above one.