introducing cookie builder, performance adjustment with requets.rs ->

core/http/src/handlers/handler.rs

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

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

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

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

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

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

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

core/http/src/setup.rs