Lock icons (#1346)

* new lock/unlock icons

* Update icons/lock-2.svg

Co-authored-by: Jakob Guddas <github@jguddas.de>

* Update icons/unlock-2.svg

Co-authored-by: Jakob Guddas <github@jguddas.de>

* Update lock-2.svg

* Update unlock-2.svg

* Update unlock-2.svg

* Rename lock-2.json to lock-dot.json

* Rename lock-2.svg to lock-dot.svg

* Rename unlock-2.json to unlock-dot.json

* Rename unlock-2.svg to unlock-dot.svg

* Update icons/lock-dot.svg

Co-authored-by: Jakob Guddas <github@jguddas.de>

* Update icons/unlock-dot.svg

Co-authored-by: Jakob Guddas <github@jguddas.de>

* Update and rename lock-dot.json to lock-keyhole.json

* Rename lock-dot.svg to lock-keyhole.svg

* Update and rename unlock-dot.json to unlock-keyhole.json

* Rename unlock-dot.svg to unlock-keyhole.svg

---------

Co-authored-by: Jakob Guddas <github@jguddas.de>
Co-authored-by: Eric Fennis <eric.fennis@gmail.com>

icons/lock-keyhole.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "security",
+    "password",
+    "secure",
+    "admin"
+  ],
+  "categories": [
+    "security"
+  ]
+}

icons/unlock-keyhole.json

@@ -0,0 +1,9 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "security"
+  ],
+  "categories": [
+    "security"
+  ]
+}