Get checks if a field (of a Go struct) is exported and, if so, returns the GraphQL field info.

GetInfoFromTag extracts GraphQL field name and type info from the field's tag (if any) If the tag just contains a dash (-) then nil is returned (no error).

SplitArgs splits a string on commas and returns the resulting slice of strings.

SplitWithDesc is like SplitArgs but also allows a trailing "description" (anything after the first #).

"complexity" option specifies how to estimate the complexity of a resalver.

"field_id" option generates an extra "id" field for queries on a list (array/slice/map).

"subscript" option generates a resolver to subscript into a list (array/slice/map).

TagKey is tag string "key" for our app - used to find options in the field metadata (tag string).

UnmarshalerType is the dynamic type of the Unmarshaler interface It's used to check if a type has an UnmarshalEGGQL method, which indicates it is a custom scalar type.

Info is returned from Get() with info extracted from a struct field to be used as a GraphQL query resolver.