Filter plugin Pivot to OPCUA

This plugin intends at converting PIVOT data into OPCUA north plugin.

The filter implements the Fledge Filter plugin interface (see filter_plugins).

Filter configuration

See Plugins configuration design for examples and details

The "config" parameter of "plugin_init" call shall include :

A "exchanged_data" category with the same content as provided to the OPCUA north plugin. This section is mandatory so that the filter plugin can convert the PIVOT type to OPCUA type.
A "protocol_translation" category including all mapping rules from PIVOT. This section shall contain in the "mapping_rules" array the following entries:

input_type	output_type	mapping_rule
SpsTyp	opcua_sps	PtoOPcua_sps1
DpsTyp	opcua_dps	PtoOPcua_dps1
MvTyp	opcua_mvi	PtoOPcua_mvi1
MvTyp	opcua_mvf	PtoOPcua_mvf1

Notes :

All types not listed in this table are not supported in current version.
The current implemention only provides one mapping rule for each known types, but some new rules migth be added in the future. and configured using this parameters.

The "plugin_ingest" call will convert each "reading" of "reading_set" as follow:

The <Root> key of PIVOT object can be:

In the following table: <type> is equal to

The content under <Root> will convert the pivot to a opcua object as follow:

Key	Type	Default Value	opcua.data_object.<...>	Note
`<Root>.Cause.stVal`	Integer	Mandatory	do_cot	See Cause of Transmission
`<Root>.Confirmation`	Boolean	false	do_confirmation
`<Root>.ComingFrom.stVal`	String	Mandatory	do_comingfrom	Any protocol name ("iec104" ,"opcua", ...)
`<Root>.Identifier`	String	Mandatory	do_id do_type	do_id = PIVOT ID do_type = "opcua_sps" \| "opcua_dps" \| "opcua_mvi" \| "opcua_mvf". Other types not supported in current version.
`<Root>.<type>.q.DetailsQuality`	PIVOT : Object OPCUA : Integer	0	do_detail	OR-Mask of following values: `0x0001 = badReference` `0x0002 = failure 0x0004 = inconsistent 0x0008 = innaccurate 0x0010 = oldData 0x0020 = oscillatory 0x0040 = outOfRange 0x0080 = overflow`
`<Root>.<type>.q.test`	Boolean	false	do_test
`<Root>.<type>.q.operatorBlocked`	Boolean	false	do_operator_blocked
`<Root>.<type>.q.Source`	String	"process"	do_source	"process" \| "substituted"
`<Root>.<type>.t.SecondSinceEpoch`	Integer	0	do_ts
`<Root>.TmOrg`	String	Mandatory	do_ts_org	"genuine" \| "substituted"
`<Root>.TmValidity`	String	Mandatory	do_ts_validity	"good" \| "invalid" \| "reserved" \| "questionable"
`<Root>.TimeAccuracy`	Integer	0	do_ts_accuracy	OR-Mask of following values: `0x01 = clockFailure 0x02 = clockNotSynch 0x04 = leapSecondKnown`
`<Root>.SpsTyp.stVal`	Boolean	Mandatory	do_value
`<Root>.DpsTyp.stVal`	Integer	Mandatory	do_value
`<Root>.MvTyp.stVal.mag.f`	Float	Mandatory	do_value
`<Root>.MvTyp.stVal.mag.i`	Integer	Mandatory	do_value