migrate to webos_include_install_paths

:Release Notes:

:Detailed Notes:
- replace source template file approach with injected defines introcued
  in webOS.cmake 1.0.0 RC6.

:Testing Performed:
desktop build and checked that all semi-hard-coded paths left unchanged

:QA Notes:

:Issues Addressed:
[CMB-1112] Implement global severity overriding

Open-webOS-DCO-1.0-Signed-off-by: Nikolay Orliuk <nikolay.orliuk@lge.com>

Change-Id: I12b1d6b2c3b7a3bc0abdaf04ef43f68ea47b3f67
Reviewed-on: https://g2g.palm.com/6409
Reviewed-by: DCO Verification
Reviewed-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Tested-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
add overrides.conf placed on r/w partition

:Release Notes:
Now pmloglib reads file /var/preferences/pmloglib/overrides.conf
to change severity for components declared in /etc/pmlog.d.

:Detailed Notes:
- add reading /var/preferences/pmloglib/overrides.conf after processing
  /etc/pmlog.d
- support config files with property "overrides" instead of "contexts"
- turn on C99 standard for source files (public headers still
  C90-compatible)

:Testing Performed:
desktop build with PmLogCtl show and simple conf:
{ "overrides": [
  {
    "level": "info"
  },
  { "name": "legacy-log",
    "level": "debug"
  }
] }

:QA Notes:

:Issues Addressed:
[CMB-1112] Implement global severity overriding

Open-webOS-DCO-1.0-Signed-off-by: Nikolay Orliuk <nikolay.orliuk@lge.com>

Change-Id: Id6e46055538f6f8fafd83d0cc4e4349c73aebfd4
Reviewed-on: https://g2g.palm.com/6410
Reviewed-by: DCO Verification
Reviewed-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Tested-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
bump version 3.2.0 before integration

:Release Notes:

:Detailed Notes:
- bump version of pmloglib from 3.1.0 to 3.2.0 for referencing on new
  functionality in other components

:Testing Performed:
desktop build

:QA Notes:

:Issues Addressed:
[CMB-1112] Implement global severity overriding

Open-webOS-DCO-1.0-Signed-off-by: Nikolay Orliuk <nikolay.orliuk@lge.com>

Change-Id: Ida4ed795996435db548a20a32f49849ac2354991
Reviewed-on: https://g2g.palm.com/6411
Reviewed-by: DCO Verification
Reviewed-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Tested-by: Nikolay Orliuk <nikolay.orliuk@lge.com>
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Merge branch 'develop'