GaudiAlg FunctionalDetails apply range size check in debug builds only

Following a discussion with @graven last week during the LHCb S/W workshop, where we discussed the idea that runtime sanity checks should only be applied in debug builds, and the optimised release builds should skip them as far as possible, this MR protects the runtime container size check used by the range zipping utilities to only be applied in debug builds (i.e. when NDEBUG is not defined.).

• [2017-11-28 12:03] Validation started with lhcb-gaudi-merge#327
• [2017-11-28 12:25] Validation started with lhcb-gaudi-head#1674
• [2017-11-29 00:03] Validation started with lhcb-future#616
• [2017-11-29 00:03] Validation started with lhcb-future-clang#390
• [2017-11-29 00:03] Validation started with lhcb-gaudi-head#1675
• [2017-11-30 00:03] Validation started with lhcb-future#617
• [2017-11-30 00:03] Validation started with lhcb-future-clang#391
• [2017-11-30 00:04] Validation started with lhcb-gaudi-head#1676
• [2017-12-01 00:03] Validation started with lhcb-gaudi-head#1677
• [2017-12-02 00:04] Validation started with lhcb-gaudi-head#1678
• [2017-12-03 00:04] Validation started with lhcb-gaudi-head#1679
• [2017-12-04 00:03] Validation started with lhcb-gaudi-head#1680
• [2017-12-04 10:31] Validation started with prepare-gaudi-420#10
• [2017-12-05 00:03] Validation started with lhcb-gaudi-head#1681
• [2017-12-06 00:03] Validation started with lhcb-gaudi-head#1682
• [2017-12-07 00:04] Validation started with lhcb-gaudi-head#1683
• [2017-12-08 00:04] Validation started with lhcb-gaudi-head#1684
• [2017-12-08 09:08] Validation started with lhcb-gaudi-head#1684
• [2017-12-09 00:04] Validation started with lhcb-gaudi-head#1685
• [2017-12-10 00:03] Validation started with lhcb-gaudi-head#1686
• [2017-12-11 00:03] Validation started with lhcb-gaudi-head#1687
• [2017-12-12 00:04] Validation started with lhcb-gaudi-head#1688
• [2017-12-12 15:19] Validation started with lhcb-gaudi-head-py3#1
• [2017-12-13 00:03] Validation started with lhcb-gaudi-head#1689
• [2017-12-13 00:04] Validation started with lhcb-gaudi-head-py3#2
• [2017-12-14 00:03] Validation started with lhcb-gaudi-head#1690
• [2017-12-14 00:30] Validation started with lhcb-gaudi-head-py3#3
• [2017-12-14 00:55] Validation started with lhcb-gaudi-head#1690
• [2017-12-15 00:02] Validation started with lhcb-gaudi-head-py3#4
• [2017-12-15 00:04] Validation started with lhcb-gaudi-head#1691
• [2017-12-16 00:03] Validation started with lhcb-gaudi-head-py3#5
• [2017-12-16 00:03] Validation started with lhcb-gaudi-head#1692
• [2017-12-17 00:03] Validation started with lhcb-gaudi-head-py3#6
• [2017-12-17 00:04] Validation started with lhcb-gaudi-head#1693
• [2017-12-18 00:03] Validation started with lhcb-gaudi-head#1694
• [2017-12-18 00:04] Validation started with lhcb-gaudi-head-py3#7
• [2017-12-18 12:29] Validation started with lhcb-gaudi-head#1695

approved this merge request

added 17 commits

• 2a0a0c0a...79156746 - 16 commits from branch gaudi:master
• 701e8909 - Merge branch 'master' of ssh://gitlab.cern.ch:7999/gaudi/Gaudi into…

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changed milestone to %v30r1

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