Updated version with axes-limits

• Minor bugfixes
• Added axes-limits for all robots
• Changed pin-mapping for ESP32 Serial1

Minor bugfixes and keywords-file added

• Updated the way libraries are included
• Minor bugfixes
• Added keywords.txt for syntax-highlighting in Arduino IDE

Updated kinematics for morobot-3d

After minor changes to the morobot-3d, the armlengths necessaryto calculate the kinematics have been updated.

Library for morobot-s, -p, -3d, -2d and endeffectors

This release supports the following morobot-types:

• morobot-s (rrr)
• morobot-s (rrp)
• morobot-p
• morobot-3d
• morobot-2d

This release enables to:

• Control the motors of the robots within their valid range
• Get all robot parameters and motor values
• Move the robots with angular movements (and calculate the TCP-pose) or in a koordinate-frame
• Attach and control the endeffectors parallel-gripper, angular-gripper and binary endeffectors such as elektro-magnets or suction cups

This release is tested on:

• Arduino Uno
• Arduino Mega
• ESP32
• ESP8266
• and should work with Arduino Nano, Mini, Micro, Leonardo, Yun