Bespoke vec methods #3903

Job	Run time
ubuntu-clang-deprecated Release	25m 19s
ubuntu-clang-deprecated Debug	24m 16s
ubuntu-clang-tbb Debug	26m 43s
ubuntu-clang-quaternions Debug	25m 5s
ubuntu-clang-quaternions Release	25m 40s
ubuntu-no-boost Debug	20m 59s
ubuntu-clang-cayleymap Debug	24m 43s
ubuntu-no-unstable Debug	20m 51s
ubuntu-clang-tbb Release	27m 42s
ubuntu-clang-system-libs Release	26m 14s
ubuntu-clang-cayleymap Release	25m 40s
ubuntu-build-examples Release	25m 33s
ubuntu-no-boost Release	22m 8s
ubuntu-no-unstable Release	21m 52s
ubuntu-clang-system-libs Debug	24m 22s
ubuntu-build-examples Debug	24m 31s
	6h 31m 38s

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