Merge pull request #21 from Nargis21/UM-24

middlewares and readme file added

password change done with save method

password changed done with update method

Merge pull request #20 from Nargis21/UM-23

[Done] Authentication and Authorization using JWT

regenerate access token by refresh token done

user login with access token. refresh token and cookie done

login method with statics

auth module with instance method

Merge pull request #19 from Nargis21/UM-22

[Done] Create admin module

Merge pull request #18 from Nargis21/UM-21

[Done] Create management department module

Merge pull request #17 from Nargis21/UM-20