Converting old netconf NEDs to CDM

This description expects the NED to be built with the structure as defined by the ncs-make-package. If this doesn't hold then the adaptations has to be done otherwise with an outcome that resembles the one described below.

For simple netconf NEDS use the ncs-make-package to generate a new package:

ncs-make-package --no-java --no-python --dest /tmp/new \
  --netconf-ned src/yang XXXX-YYYY

Use the generated package in /tmp/new as is or use it as a guide how a package is structured and the Makefile is written.

If the simple case is not applicable then for the general case follow the below steps:

package-meta-data.xml

In the top directory of the NED:

mv package-meta-data.xml src/package-meta-data.xml.in

Makefile

In src/Makefile add the following make variable at the top after the other make variables:

NED_ID_ARG = $(shell [ -x ${NCS_DIR}/support/ned-ncs-ned-id-arg ] && \
    ${NCS_DIR}/support/ned-ncs-ned-id-arg package-meta-data.xml.in)

In src/Makefile add the following dependencies first among dependencies to the all: target:

../package-meta-data.xml ned-id-file

and to the clean: target add:

rm -f ../package-meta-data.xml

Add the new targets:

../package-meta-data.xml: package-meta-data.xml.in
        rm -rf $@
        if [ -x ${NCS_DIR}/support/ned-make-package-meta-data ]; then \
           ${NCS_DIR}/support/ned-make-package-meta-data $<;          \
        else                                                          \
           cp $< $@;                                                  \
        fi
        chmod +w $@

ned-id-file:
        if [ -x ${NCS_DIR}/support/ned-make-package-meta-data ]; then   \
            echo -n "$(NED_ID_FILE) is built by: ";                     \
            echo "support/ned-make-package-meta-data";                  \
        fi

Add the make variable $(NED_ID_ARG) as an argument to all targets which are ncsc compiled. Look for everything which uses the option '--ncs-device-type'

Verify changes

Compile code for both versions < 5.0 and versions >= 5.0:
```
make -C src
make -C src
```
twice without any errors, then do:
```
make -C src clean
make -C src clean
```
twice without any errors.

Everything now should have been cleaned, if this is not the case update the clean: of the relevant Makefile