Rather, pass it around between functions and attach it to other state.
Also, make it a talloc contxt so other objects can be allocated off it.
Change-Id: I25f592581382238d5640c1f6326dec745f8d1d40
As both the bankd and the server already are in src/bankd and
src/server, respectively: Let's unify this and have the client
also in its own sub-directory.
Change-Id: I67a3a5941434f09f7099c2cdb19c126cea305a73