Implement sections resolvers for GraphQL server

[mikehquan19]

Overview

Follow the guidelines on GraphQL implementation and add the section resolver in

section.resolvers.go

in branch

graphql-v2

[Yogeb-tech]

I want

[mikehquan19]

@Yogeb-tech , I will assign another resolver soon!

[simar-rekhi]

Thanks, mike :)

[simar-rekhi]

@mikehquan19 can you also assign it to @ysrathore21
we'd like to work on the issue together

[mikehquan19]

@ysrathore21 you are assigned!

[mikehquan19]

@ysrathore21 @simar-rekhi , So in PR #351, you didn't define the schema in schema.graphqls let graphql auto-generate the schema in models_generated I believe?