[BUGFIX] Don't store ``SecurityContextHash`` in session
[BUGFIX] Don't store ``SecurityContextHash`` in session

Adds ``Flow\Transient`` annotations to ``Security\Context::contextHash``
and ``Security\Context::contextHashComponents`` so that they won't be
stored in the session and refreshed for every request.

Change-Id: I841f49b4cb6e6969ff1b0fd7f4d5975f6607f4a9
Related: NEOS-433
Releases: master, 3.0
Original-Commit-Hash: 97f6ac1d078b1998b33aaeea3298e1a4d1b2ac8d

dfeyer/flow-development-collection,bwaidelich/flow-development-collection,albe/flow-development-collection,daniellienert/flow-development-collection,robertlemke/flow-development-collection,kitsunet/flow-development-collection,bwaidelich/flow-development-collection,aertmann/flow-development-collection,neos/flow-development-collection,dfeyer/flow-development-collection,fcool/flow-development-collection,chewbakartik/flow-development-collection,gerhard-boden/flow-development-collection,gerhard-boden/flow-development-collection,kdambekalns/flow-development-collection,chewbakartik/flow-development-collection,dfeyer/flow-development-collection,albe/flow-development-collection,kdambekalns/flow-development-collection,kdambekalns/flow-development-collection,kitsunet/flow-development-collection,neos/flow-development-collection,kitsunet/flow-development-collection,dfeyer/flow-development-collection,aertmann/flow-development-collection,neos/flow-development-collection,mkeitsch/flow-development-collection,robertlemke/flow-development-collection,robertlemke/flow-development-collection,daniellienert/flow-development-collection,gerhard-boden/flow-development-collection,bwaidelich/flow-development-collection,daniellienert/flow-development-collection,fcool/flow-development-collection,dlubitz/flow-development-collection,chewbakartik/flow-development-collection,aertmann/flow-development-collection,albe/flow-development-collection,dlubitz/flow-development-collection,dlubitz/flow-development-collection,fcool/flow-development-collection,kdambekalns/flow-development-collection,mkeitsch/flow-development-collection,neos/flow-development-collection,robertlemke/flow-development-collection,mkeitsch/flow-development-collection,fcool/flow-development-collection