Begin working on JSON CLI tool.

This is a similar situation to the HTTP CLI tool: since we have the
Json API anyway, we might as well have a little command line tool to
replace jq.

TODO.txt

@@ -25,7 +25,7 @@ Milestone: v0.3.0
 [~] Simple command line tool to make matrix requests
     [x] Built on HTTP client API
     [ ] http man page
-[ ] Simple command line tool for working with JSON
+[~] Simple command line tool for working with JSON
     - Like a simpler version of jq
     - Should pretty-print Json
     - Should be able to query fields for use in shell scripts.

tools/src/json.c

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <stdio.h>
+
+#include <Json.h>
+
+int
+main(int argc, char **argv)
+{
+    HashMap *json;
+
+    json = JsonDecode(stdin);
+
+    if (!json)
+    {
+        fprintf(stderr, "Malformed JSON.\n");
+        return 1;
+    }
+
+    JsonEncode(json, stdout);
+    printf("\n");
+
+    return 0;
+}