Added functioning PRAGMA support

src/query_wrapper.mjs

@@ -22,17 +22,41 @@ export class QueryWrapper {
   execute(db) {
     if (this.isAnyOf("INSERT", "UPDATE", "DELETE")) {
       return this.executeRun(db);
+    } else if (this.isAnyOf("PRAGMA")) {
+      return this.executeGet(db);
     } else {
       return this.executeAll(db);
     }
   }
 
+  executeGet(db) {
+    return new Promise((resolve, reject) => {
+      const self = this;
+
+      log(this.sql);
+      db.get(this.sql, ...this.args, function (err, row) {
+        if (err) {
+          reject(NodeAdapterError.from(err));
+          return;
+        }
+
+        const result = {};
+
+        if (row) {
+          result.rows = [row];
+        }
+
+        resolve(ResponseWrapper.success(result));
+      });
+    });    
+  }
+
   executeRun(db) {
     return new Promise((resolve, reject) => {
       const self = this;
 
       log(this.sql);
-      db.run(this.sql, ...this.args, function (err) {
+      db.get(this.sql, ...this.args, function (err) {
         if (err) {
           reject(NodeAdapterError.from(err));
           return;