docs: adds feature table in README

Author: DavidPL1

README.md

@@ -16,6 +16,21 @@ service    | Noetic / One | Humble (coming soon)
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+# Features at a Glance
+
+Feature | Noetic / One | Humble
+------- | :----------: | :-----:
+Interactive GUI  | ✔️ | ✔️ |
+Headless Mode (OSMESA\EGL) | ✔️ | ✔️ |
+Virtual Camera Streams (RGB, Depth, Segmentation Masks) | ✔️ | ✔️ |
+Loading Custom PluginLib Plugins | ✔️ | ✔️ |
+Simulation Controls Through Services/Actions | ✔️ | ✔️ |
+ROS Control |️ ✔️ | ✖️ |
+MuJoCo Sensor Streams  | ✔️ | ✖️ |
+Laser Sensors | ✔️ | ✖️ |
+Mocap Body Control Topic/Service | ✔️ | ✖️ |
+Python bindings          | WIP | ✖️ |
+Spawning Objects via ROS | ✖️ | ✖️ |
 
 # Build Instructions
 1. Make sure MuJoCo is installed (the current build uses version 3.2.0) and runs on your machine.