HPCC-28555 Add blocked reader for unfiltered serial index reading #5346

Job	Run time
Check Skip	7s
Build Docker (ubuntu-22.10, pull_request)	44m 11s
Build Docker (ubuntu-22.04, true, schedule)	2s
Build Docker (ubuntu-22.04, schedule)	2s
Build Docker (ubuntu-20.04, schedule)	4s
Build Docker (centos-8, schedule)	5s
Build Docker (centos-7, pull_request)	48m 40s
Build Docker (amazonlinux, schedule)	4s
Build Docker (centos-7, true, schedule)	4s
Build Bare Metal (ubuntu-20.04, mono, sudo, -DCMAKE_BUILD_TYPE=RelWithDebInfo -DINCLUDE_PLUGINS=O...	3s
Build Bare Metal (ubuntu-22.04, mono, sudo, -DCMAKE_BUILD_TYPE=RelWithDebInfo -DINCLUDE_PLUGINS=O...	34m 34s
Build Bare Metal (windows-2019, -T host=x64 -A x64 -DUSE_OPTIONAL=OFF -DCLIENTTOOLS_ONLY=ON -DUSE...	4s
Build Bare Metal (windows-2022, -T host=x64 -A x64 -DUSE_OPTIONAL=OFF -DCLIENTTOOLS_ONLY=ON -DUSE...	25m 19s
Build Bare Metal (macos-11, mono, sudo, -DCMAKE_BUILD_TYPE=Release -DUSE_OPTIONAL=OFF -DCLIENTTOO...	4s
Build Bare Metal (macos-12, mono, sudo, -DCMAKE_BUILD_TYPE=Release -DUSE_OPTIONAL=OFF -DCLIENTTOO...	17m 17s
	2h 50m 40s

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