Missing types APIS

[remigermain]

Some apis are not typed

groups.service.ts

• addParentGroup
• removeGroupMember
• postGroupProjects
• removeGroupProject
• postGroupMembers

mentoroship.service.ts

• offerMentorship
• askMentorship
• respondMentorship

organizations.service.ts

• addOrgMember
• removeOrgMember