HPCC-12127 Use 64-bit integer for HTTP Content-Length header

In the existing ESP code, two member variables are used to store
and set HTTP Content-Length header: m_content_length64 (int64)
and m_content_length (int). When an HTTP message content is very
large, m_content_length may have an incorrect value. ESP fails
to download a >4G file due to the incorrect value. This fix
changes the m_content_length to be int64 and replaces the
m_content_length64 with the m_content_length.

Signed-off-by: wangkx <kevin.wang@lexisnexis.com>
HPCC-12117 Clean up access to the default timer

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
HPCC-11987 Improve cli usage description for --no-files and --daliip

Signed-off-by: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
HPCC-12117 Remove unnecessary code to clear the default timer

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
HPCC-12333 Update unit tests to support different page sizes

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #6480 from afishbeck/noFilesUsageDesc

HPCC-11987 Improve cli usage description for --no-files and --daliip

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #6468 from ghalliday/issue12117

HPCC-12117 Clean up access to the default timer

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #6420 from wangkx/content_length_64

HPCC-12127 Use 64-bit integer for HTTP Content-Length header

Reviewed-By: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #6481 from ghalliday/issue12333

HPCC-12333 Update unit tests to support different page sizes

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>