fix and refactor vfs modules to merge ourdb implementations into generic vfs_db and separate vfs_local

lib/vfs/vfs_db/metadata.v

@@ -0,0 +1,27 @@
+module vfs_db
+
+import time
+import freeflowuniverse.herolib.vfs
+
+// Metadata represents the common metadata for both files and directories
+pub struct NewMetadata {
+pub mut:
+	name      string       @[required] // name of file or directory
+	file_type vfs.FileType @[required]
+	size      u64          @[required]
+	mode      u32    = 0o644 // file permissions
+	owner     string = 'user'
+	group     string = 'user'
+}
+
+pub fn (mut fs DatabaseVFS) new_metadata(metadata NewMetadata) vfs.Metadata {
+	return vfs.new_metadata(
+		id:        fs.get_next_id()
+		name:      metadata.name
+		file_type: metadata.file_type
+		size:      metadata.size
+		mode:      metadata.mode
+		owner:     metadata.owner
+		group:     metadata.group
+	)
+}