HPCC-11306 Localise legacy ECLWatch pages embeded in new ECLWatch

Those legacy ECLWatch pages include System Servers page, Cluster
Processes page, Target Clusters page, as well as linked pages
from those three pages. Use HTTP Accept-Language header to decide
which language is displayed. Read display strings from a language
resource file. Display the strings on the legacy ECLWatch pages.

Signed-off-by: Kevin Wang kevin.wang@lexisnexis.com
HPCC-11321 - external file write/read test to regression suite

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #5770 from wangkx/h11208

HPCC-11306 Localise legacy ECLWatch pages embeded in new ECLWatch

Reviewed-By: Gordon Smith <gordon.smith@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
HPCC-11348 ecltest setup missing some options

Add platform specific Setup result handling.
  It search the Setup related keyfile under ecl/setup/<platform>/
  directory first. If unsuccessful then it tries in ecl/key/.

Add parallel execution capability for Setup.

Update README.rst with these changes.

Add small changes to make coverage generation easier in Overnight Build
and Test System

Signed-off-by: Attila Vamos <attila.vamos@gmail.com>
Merge pull request #5787 from jakesmith/hpcc-11321

HPCC-11321 - external file write/read test to regression suite

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #5812 from AttilaVamos/HPCC-11348-fix

HPCC-11348 ecltest setup missing some options

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>