MdePkg/Include: Enhance DebugLib to support reproduce builds

MdePkg/Include: Enhance DebugLib to support reproduce builds

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3688

* Add DEBUG_LINE_NUMBER define to DebugLib.h that is
  by default mapped to __LINE__.  A build can define
  DEBUG_LINE_NUMBER to use a fixed value.
* Add DEBUG_EXPRESSION_STRING(Expression) macros to
  DebugLib.h that is by default mapped to #Expression.
  A build can define DEBUG_EXPRESSION_STRING_VALUE to
  set all expression strings to a fixed string value.

Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Tested-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>