Add base config for Nextcloud

Some of the config keys are set by the machine automatically
and are machine-specific or provide info about the Nextcloud

.config/Nextcloud/sync-exclude.lst

@@ -0,0 +1,37 @@
+]*~
+]~$*
+].~lock.*
+]~*.tmp
+]*.~*
+]Icon\r*
+].DS_Store
+].ds_store
+]*.textClipping
+]._*
+]Thumbs.db
+]photothumb.db
+]System Volume Information
+].*.sw?
+].*.*sw?
+].TemporaryItems
+].Trashes
+].DocumentRevisions-V100
+].Trash-*
+].fseventd
+].apdisk
+].Spotlight-V100
+].directory
+]*.part
+]*.filepart
+]*.crdownload
+]*.kate-swp
+]*.gnucash.tmp-*
+].synkron.*
+].sync.ffs_db
+].symform
+].symform-store
+].fuse_hidden*
+]*.unison
+].nfs*
+]My Saved Places.
+]\#*#