trying to solve some bugs when registering handlers to a given router

v0.3.3

test: trying to solve some bugs when registering handlers to a given …

added SendInternalServerError function

v0.3.2

feat: added SendInternalServerError function

added internal server error response to the client if the response or its code is nil

v0.3.1

refactor: added internal server error response to the client if the r…

added response struct

feat: added response struct

* Added response struct
* Converted JWT validator error handler interface to a function
* Upgraded dependencies

removed error return value from NewDefaultEncoder function

v0.2.7

minor: removed error return value from NewDefaultEncoder function

modified second parameter type from RouterWrapper's RegisterRouteGroup function

v0.2.6

fix: modified second parameter type from RouterWrapper's RegisterRout…

removed HTTP service-related structs

v0.2.5

refactor: removed HTTP service-related structs

exported 'service' from HTTP route controller struct

v0.2.4

fix: exported 'service' from HTTP route controller struct

renamed Router function as Handler

v0.2.3

minor: renamed Router function as Handler

rename Group as Router and added NewRouterGroup function, among others

v0.2.2

feat: rename Group as Router and added NewRouterGroup function, among…