added abstract expression

CMakeLists.txt

scripts/abstract.py

scripts/emotion.py

scripts/play_animation.py

src/visualising/communication/arduino.py

src/visualising/communication/channel/connection.py

src/visualising/communication/channel/message/msg_frame.py

src/visualising/communication/channel/message/msg_instr.py

src/visualising/communication/channel/message/response.py

src/visualising/communication/illustration/animation.py

src/visualising/communication/illustration/color/rgb.py

src/visualising/communication/illustration/ensemble.py

src/visualising/communication/illustration/frame.py

src/visualising/communication/illustration/pixel.py

src/visualising/expression/abstract.py

src/visualising/expression/library/alphabet/l_A.txt

src/visualising/expression/library/alphabet/l_B.txt

src/visualising/expression/library/alphabet/l_C.txt

src/visualising/expression/library/alphabet/l_D.txt

src/visualising/expression/library/alphabet/l_E.txt