Feat:Add pagination to get campaign by category( issue#33)

[Iknow6aint]

-For this implementation i had to crate some pagination interfaces that i added to the DTOs folder
-In the getCampaignsByCategory endpoint i added a new pagination parameter with the interface paginationInput , the pagination inputs holds the cursor,limit and skip varialbles.
-the endpoint now returns a new object PaginatedCampaigns that returns the campaigns array and the pagination meta data(total count and hasNextPage)

fixes #33

[Oshioke-Salaki]

Please make sure that all checks are passing @Iknow6aint

[Iknow6aint]

i have made the changes

[EjembiEmmanuel]

Why do we have so many files changed? It's difficult to review like this, please include only files you worked on. Also we're using yarn packager so get rid of package.lock.json

[Iknow6aint]

I have redone the implementation on a clean branch should I make a pr from there?

[Oshioke-Salaki]

yes you can. then close this one