prototyping for cookies further, working on UrlEncoded text

core/http/src/handling/file_handlers.rs

core/http/src/handling/request/cookies.rs

core/http/src/handling/request/datatypes.rs

core/http/src/handling/request/form_utils.rs

core/http/src/handling/request/request_mime.rs

core/http/src/handling/response/cookie_management/cookie.rs

...src/handling/response/cookie_management/cookie_builder.rs

core/http/src/handling/response/traits.rs

core/http/src/handling/routes.rs

core/http/src/utils/mime/mod.rs

core/http/src/utils/mod.rs

core/http/src/utils/urlencoded/datatypes.rs

core/http/src/utils/urlencoded/endecode.rs

core/http/src/utils/urlencoded/mod.rs