Replacing use of "[" and "]" as it violates RFC 7230 and RFC 3986

[ManuConstantin]

Since characters like "[", "]", "{", "}" are not compliant with RFC 7230 and RFC 3986 it would be nice if we could replace them with something else.
Example
From filter[something]
To filter%something%

[Lumethys]

to my knowledge, this package is built according to the Json:api specification, in which the defined filter syntax, which is defined in their appendix query details and quer parameter family, use the square brackets