Split format_table into separate crate and reduce k2v-client dependencies

src/format-table/README.md

@@ -0,0 +1,13 @@
+# `format_table`
+
+Format tables with a stupid API. [Documentation](https://docs.rs/format_table).
+
+Example:
+
+```rust
+let mut table = vec!["product\tquantity\tprice".to_string()];
+for (p, q, r) in [("tomato", 12, 15), ("potato", 10, 20), ("rice", 5, 12)] {
+	table.push(format!("{}\t{}\t{}", p, q, r));
+}
+format_table::format_table(table);
+```