Added editing function for pages (using tinymce).

Added editing pages for footer, banner, aside.
Added page overview.
Added public page.
Added settings page.
Added generator for embed pseudocodes.

inc/mdEmbeds.php

@@ -0,0 +1,43 @@
+<?PHP
+/**
+ * For embedding from museum-digital functions.
+ *
+ * @file
+ *
+ * @author Joshua Ramon Enslin <joshua@jrenslin.de>
+ */
+
+/**
+ * Function for checking a text for the existence of pseudocode
+ * for embedding from museum-digital.
+ *
+ * @param string $text Input string.
+ *
+ * @return string
+ */
+function checkForEmbeds(string $text):string {
+
+    $embedOptions = [
+        "eventCalendar"
+    ];
+
+    foreach ($embedOptions as $option) {
+
+        if (strpos($text, $option) === false) continue;
+        $position = strpos($text, $option) - 1;
+
+        $nextTag        = strpos($text, "<", $position);
+        $nextWhitespace = strpos($text, " ", $position);
+
+        $end = min($nextTag, $nextWhitespace, strlen($text));
+
+        $pseudocode = substr($text, $position, $position + $end);
+        echo $pseudocode;
+
+    }
+
+    return $text;
+
+}
+
+?>