Fix branding, add checks for RAM and Storage

etc/calamares/branding/netrunner-core/branding.desc

@@ -2,13 +2,13 @@
 componentName:  netrunner-core
 
 strings:
-    productName:         Netrunner Debian Edition
+    productName:         Netrunner Debian Core Edition
-    shortProductName:    Netrunner Debian
+    shortProductName:    Netrunner Debian Core
     version:             1.0.0-dev
     shortVersion:        1.0
-    versionedName:       Netrunner Debian Edition
+    versionedName:       Netrunner Debian Core Edition
-    shortVersionedName:  Netrunner Debian 1.0
+    shortVersionedName:  Netrunner Debian Core 1.0
-    bootloaderEntryName: Netrunner Debian
+    bootloaderEntryName: Netrunner Debian Core
 
 images:
     productLogo:         "netrunner-debian-logo.png"

etc/calamares/modules/welcome.conf

@@ -4,9 +4,15 @@ showKnownIssuesUrl:     true
 showReleaseNotesUrl:    true
 
 requirements:
+    requiredStorage:    10.0
+    requiredRam:        1.0
     check:
+        - storage
+        - ram
         - power
         - internet
         - root
     required:
         - root
+        - storage
+        - ram