and make sure it is started. This is needed for the SNMP tests (test_snm*) to run properly.
Since we can't rely on systemd in Alpine we start snmpd from the startsystem-scripts.
Added two new config options to clixon-config.yang: `CLICON_HTTP_DATA_ROOT`
Added new files: apps/snmp/snmp_mib_yang.[ch] for generic MIB/YANG handling
Test: killall quiet
Test: added specific MIB for generic code: <CLICON_SNMP_MIB>NET-SNMP-EXAMPLES-MIB</CLICON_SNMP_MIB>
Added configure option --with-mib-generated-yang-dir=DIR with
default value /usr/share/mibyang where generated YANGs from MIBs
should be placed so that SNMP tests know where to find the YANGs.
* In the autocli and handcrafted CLI:s using `expand_dbvar()` the CLI expansion followed the leafrefs to the sources, ie the origin of the leafrefs
* Instead leafref expansion now only looks at the leafrefs
* Fixed: [Error message seen twice in some cases](https://github.com/clicon/clixon/issues/325)
* Extended `-l` command-line option to all clixon commands with a `none` option, eg `-l n` directs logging to `dev/null`
* `-0` means dont send hello, but fix netconf base version to 0 and use EOM framing
* `-1` means dont send hello, but fix netconf base version to 1 and use chunked framing
* Indirect redirects from directory to `index.html`
* Added `HTTP_DATA_INTERNAL_REDIRECT` compile-time option
* Added CLICON_RESTCONF_API_ROOT to clixon-config.yang
* Added 404 return without body if neither restconf, data or streams prefix match
* Fixed: HTTP/1 parse error for '/' path
Check data paths for .., ~ and soft links
Changed semantics of `CLICON_HTTP_DATA_PATH` and `_ROOT`
Change URI catch-all to 404 instead of 400
Fixed some memory leaks
Check of enable-http-data config option
HTTP/2 Return 400 bad request if no path match
Test: updated yang file revisions, extended restconf config with http-data
Save state of netconf chunked framing between inputs
Treat EBADF in internal protocol (triggered by freebsd+notifications)
Test: chunked encoding: use printf instead of echo
* Some complexities in Section 3.7 Lexical Structure of XPath 1.0 spec
* There used to be some cornercases where function-names could not be used as nodes
* For example, `node()` is a nodetest, so `/node/` caused an error.
* In the grammar these include: axisnames, nodetests, functionnames
* The NCNames vs functionnames is now impölemented according to the lexical structure section
* Instead of removing YANG which is disabled by `if-feature`, replace it with an yang `anydata` node.
* This means XML specified by such YANG is ignored, and it is not an error to access it
* Note the similarity with `CLICON_YANG_UNKNOWN_ANYDATA`
