Redesigned error handling

Current error handling send only error code, which is not enough to
display detailed information. New error handling in additional to
error code send property name. This al

Redesigned error handling

Current error handling send only error code, which is not enough to
display detailed information. New error handling in additional to
error code send property name. This allows to send meaningful messages
back to used about errors.

Tested:
- Old redfish code properly handles errors (reads only error_code)
- Redfish version which read property name from error displays more
detailed error information

Change-Id: I54caa20881ac3f3e38cb295a3aa95ddab491303f
Signed-off-by: Krzysztof Grobelny <krzysztof.grobelny@intel.com>

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Add length limit for user-defined values

Previously, the only limit for most user-defined values like id or name
was the one enforced by dbus, which was fairly big. In order to save
space used by pe

Add length limit for user-defined values

Previously, the only limit for most user-defined values like id or name
was the one enforced by dbus, which was fairly big. In order to save
space used by persistent data, new meson options were added, with length
limit for those fields.

This directly impacts following dbus interfaces:
- TriggerManager.AddTrigger:
- Id
- Name
- Reports
- Thresholds (only name of discrete threshold)
- Trigger.Name
- Trigger.Reports
- Trigger.Thresholds (only name of discrete threshold)
- ReportManager.AddReport(FutureVersion):
- Id
- Name
- MetricParameters (metricId)
- Report.Name
- Report.ReadingParameters (metricId)

For Id fields we support 'prefixes', which also are limited, but those
limit are separate. So if limit for prefix is set to 5 and limit for
id/name is set to 5, following Ids are fine:
- 12345/12345
- 12345
and following are not:
- 123456/1234
- 1/123456

Testing done:
- UTs are passing.
- new limits are reflected when calling mentioned dbus interfaces.

Signed-off-by: Szymon Dompke <szymon.dompke@intel.com>
Change-Id: I29291a1cc56a344d92fb65491c9186fdb90a8529

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Use proper dbus path when possible.

Following methods and properties were updated to use full dbus path,
instead of internal telemetry id:
- TriggerManager.AddTrigger() - 'reportIds' arg
- Trigger.R

Use proper dbus path when possible.

Following methods and properties were updated to use full dbus path,
instead of internal telemetry id:
- TriggerManager.AddTrigger() - 'reportIds' arg
- Trigger.ReportIds - renamed to 'Reports'
- Report.TriggerIds - renamed to 'Triggers'

Testing done:
- UTs were updated and are passing.

Signed-off-by: Szymon Dompke <szymon.dompke@intel.com>
Change-Id: I78d812d38289fac575d25b48503cc8b9c6f736fe

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