feat: add a paginated organization members endpoint (#16835)

Closes
[coder/internal#460](https://github.com/coder/internal/issues/460)

codersdk/organizations.go

@@ -81,6 +81,17 @@ type OrganizationMemberWithUserData struct {
 	OrganizationMember `table:"m,recursive_inline"`
 }
 
+type PaginatedMembersRequest struct {
+	OrganizationID uuid.UUID `table:"organization id" json:"organization_id" format:"uuid"`
+	Limit          int       `json:"limit,omitempty"`
+	Offset         int       `json:"offset,omitempty"`
+}
+
+type PaginatedMembersResponse struct {
+	Members []OrganizationMemberWithUserData
+	Count   int `json:"count"`
+}
+
 type CreateOrganizationRequest struct {
 	Name string `json:"name" validate:"required,organization_name"`
 	// DisplayName will default to the same value as `Name` if not provided.