Max7219 in Dot Matrix configuration (#1053)

* push final files

* Update max7219digit.cpp

reenter small bug fix on uint8 declaration

* small debug

* set max offset to 100

* remove unwanted file

* Update font file to make travis happy

* travis update

* further progress in keeping Yarvis happy

* travis font

* travis will never be satisfied but one step ahead

* YARVIS TAKE 10000000

* never ending yarvis

* Almost there with Yarvis

* removed double declaration YARVIS

* added namespace to font file (TRAVIS)

* almost there last changes for YARVIS

* further travis updates

* removed files for travis

* fix display.py length of line travis remark

* further update on display.py

* file delete travis requirement

* final entry for travis?

* Some further debug on max offset

* Travis updates

* scroll_left_new

* 90degreesrotate

* added option to config rotate90

* four orientations for the chips

* new setup for scroll

* replaced small bug missing {}

* debug changed int8 to int16 on scroll function

* removed small merge failure

* travis updates round 1

* travis updates round 2

* travis details round 3

* added options to set scroll parameters in yaml conf

* removed ttf and png to satisfy travis

* travis update

* travis updates

* travis

* further updates after input from @glmnet

* remove deleted comments

* Added ENUM TYPE to config file

* change in test file

* removed test files

* updates for pull request

* Typing error removed

* travis update

* PR updates travis

* Update test3.yaml

* Update test3.yaml

* update device schema as per #988

* Delete partitions.csv

* repair on image display and invert routine

* further update and a bit of cleanup

* added writing 0 in draw pixel

* small deletion error

* travis updates

* Update max7219digit.cpp

adding intensity value to dynamically set value

* Update max7219digit.h

adding option for intensity

* remove some files from tests

tests/test3.yaml

@@ -803,6 +803,7 @@ tm1651:
   id: tm1651_battery
   clk_pin: D6
   dio_pin: D5
+
 rf_bridge:
   on_code_received:
     - lambda: |-
@@ -817,3 +818,14 @@ rf_bridge:
         high: 0x1234
         code: 0x123456
     - rf_bridge.learn
+
+display:
+  - platform: max7219digit
+    cs_pin: GPIO15
+    num_chips: 4
+    rotate_chip: 0
+    intensity: 10
+    scroll_mode: 'STOP'
+    id: my_matrix
+    lambda: |-
+      it.printdigit("hello");