rosdep: add more mappings for OpenEmbedded to support latest melodic …

…release

* add llvm-7, llvm-dev-7, libqt5-websockets-dev, python-click introduced in melodic 2020-11-11 or 2020-12-07 release
* there isn't separate recipe for llvm7 and e.g. Dunfell release will build 9.0.1 version by default
  but that could be changed by bbappend in melodic, so the mapping still needs to be llvm recipe from
  oe-core

Signed-off-by: Martin Jansa <martin.jansa@lge.com>

rosdep/base.yaml

@@ -3936,6 +3936,7 @@ libqt5-websockets-dev:
   debian: [libqt5websockets5-dev]
   fedora: [qt5-qtwebsockets]
   gentoo: ['dev-qt/qtwebsockets:5']
+  openembedded: [qtwebsockets@meta-qt5]
   ubuntu: [libqt5websockets5-dev]
 libqt5-widgets:
   alpine: [qt5-qtbase-dev]
@@ -4826,13 +4827,15 @@ llvm-7:
   debian:
     buster: [llvm-7]
     stretch: [llvm-7]
+  openembedded: [llvm@openembedded-core]
   ubuntu:
     bionic: [llvm-7]
     focal: [llvm-7]
 llvm-7-dev:
   debian:
     buster: [llvm-7-dev]
     stretch: [llvm-7-dev]
+  openembedded: [llvm@openembedded-core]
   ubuntu:
     bionic: [llvm-7-dev]
     focal: [llvm-7-dev]

rosdep/python.yaml

@@ -1047,6 +1047,7 @@ python-click:
         packages: [python-click]
   fedora: [python-click]
   gentoo: [dev-python/click]
+  openembedded: ['${PYTHON_PN}-click@meta-python']
   osx:
     pip:
       packages: [click]