Sort components by name in HistorySvc dump

Recently I noticed that the test exercising HistorySvc was unstable.

I found out that the order of the dump at the end of the job is by component pointer, which is undefined, and changes if we make changes affecting the memory layout.

With this change I sort the dump by component name.

Backport of !552 (merged)

changed the description

changed target branch from master to v29-patches

• [2017-12-19 10:59] Validation started with lhcb-gaudi-merge#362

mentioned in commit 2ba2d527

merged