Initial project import

tools/v/vlib/encoding/csv/README.md

@@ -0,0 +1,19 @@
+## Reader example
+
+```v
+import encoding.csv
+
+data := 'x,y\na,b,c\n'
+mut parser := csv.new_reader(data)
+// read each line
+for {
+	items := parser.read() or { break }
+	println(items)
+}
+```
+
+It prints:
+```
+['x', 'y']
+['a', 'b', 'c']
+```