kpackagetool5: add page (#4213)

Co-authored-by: Starbeamrainbowlabs <sbrl@starbeamrainbowlabs.com>

pages/linux/kpackagetool5.md

@@ -0,0 +1,24 @@
+# kpackagetool5
+
+> KPackage Manager: Install, list, remove Plasma packages.
+> More information: <https://techbase.kde.org/Development/Tutorials/Plasma5/QML2/GettingStarted#Kpackagetool5>.
+
+- List all known package types that can be installed:
+
+`kpackagetool5 --list-types`
+
+- Install the package from a directory:
+
+`kpackagetool5 --type {{package_type}} --install {{path/to/directory}}`
+
+- Update installed package from a directory:
+
+`kpackagetool5 --type {{package_type}} --upgrade {{path/to/directory}}`
+
+- List installed plasmoids (--global for all users):
+
+`kpackagetool5 --type Plasma/Applet --list --global`
+
+- Remove a plasmoid by name:
+
+`kpackagetool5 --type Plasma/Applet --remove "{{name}}"`