feat: add support for BTT Manta E3EZ board (#626)

Author: cptnhotsauce

config/mcu_definitions/main/BTT_Manta_E3EZ_v1.0.cfg

@@ -0,0 +1,37 @@
+[board_pins mcu_manufacturer]
+aliases:
+    MCU_M1_STEP=PA14,	 MCU_M1_DIR=PA10,	MCU_M1_EN=PA13,	MCU_M1_CS=PB8,
+    MCU_M2_STEP=PC8,	 MCU_M2_DIR=PA15,	MCU_M2_EN=PC14,	MCU_M2_CS=PC9,
+    MCU_M3_STEP=PD2,	 MCU_M3_DIR=PD4,	MCU_M3_EN=PD3,	MCU_M3_CS=PD0,
+    MCU_M4_STEP=PD5,	 MCU_M4_DIR=PD6,	MCU_M4_EN=PB3,	MCU_M4_CS=PD1,
+    MCU_M5_STEP=PB7,	 MCU_M5_DIR=PB6,	MCU_M5_EN=PB4,	MCU_M5_CS=PB5,
+
+    MCU_M1_STOP=PC4, MCU_M2_STOP=PB0, MCU_M3_STOP=PC6, MCU_M4_STOP=PC5, MCU_M5_STOP=PB1,
+
+    MCU_HE0=PB11 , MCU_HE1=PB10 ,
+
+    MCU_BED_OUT=PB2 ,
+
+    MCU_THB=PA3 , MCU_TH0=PA4 , MCU_TH1=PA5 ,
+
+    MCU_FAN0=PA8 , MCU_FAN1=PB15 , MCU_FAN2=PB14 ,
+
+    MCU_RGB1=PC7 ,
+
+    MCU_PROBE1=PA6 , MCU_PROBE2=PA7 ,
+
+	MCU_PS_ON=PA9     ,
+    MCU_POWER_DET=PB9 ,
+
+
+    MCU_SPI3_MOSI=PC12 , MCU_SPI3_MISO=PC11 , MCU_SPI3_SCK=PC10 , MCU_SPI3_CS=PC15 ,
+
+
+    # EXP1 header
+    EXP1_1=PC1   , EXP1_2=PC2  ,
+    EXP1_3=PC3   , EXP1_4=RST  ,
+    EXP1_5=PC0   , EXP1_6=PA0  ,  # Slot in the socket on this side
+    EXP1_7=PA2   , EXP1_8=PA1  ,
+    EXP1_9=<GND> , EXP1_10=<5V> ,
+
+    

user_templates/mcu_defaults/main/BTT_Manta_E3EZ_v1.0.cfg

@@ -0,0 +1,45 @@
+#--------------------------------------------#
+#### BTT MANTA E3EZ v1.0 MCU definition #####
+#--------------------------------------------#
+[mcu]
+##--------------------------------------------------------------------
+# This board works by using a serial connection by default. If you
+# want to use CAN, invert the commented lines and use canbus_uuid.
+
+#serial: /dev/serial/by-id/change-me-to-the-correct-mcu-path
+# canbus_uuid: change-me-to-the-correct-canbus-id
+##--------------------------------------------------------------------
+
+[include config/mcu_definitions/main/BTT_Manta_E3EZ_v1.0.cfg] # Do not remove this line
+[board_pins mantam5p10_mcu]
+mcu: mcu
+aliases:
+    X_STEP=MCU_M1_STEP  , X_DIR=MCU_M1_DIR  , X_ENABLE=MCU_M1_EN  , X_TMCUART=MCU_M1_CS  ,
+    Y_STEP=MCU_M2_STEP  , Y_DIR=MCU_M2_DIR  , Y_ENABLE=MCU_M2_EN  , Y_TMCUART=MCU_M2_CS  ,
+
+    Z_STEP=MCU_M3_STEP  , Z_DIR=MCU_M3_DIR  , Z_ENABLE=MCU_M3_EN  , Z_TMCUART=MCU_M3_CS  ,
+    Z1_STEP=MCU_M4_STEP , Z1_DIR=MCU_M4_DIR , Z1_ENABLE=MCU_M4_EN , Z1_TMCUART=MCU_M4_CS ,
+    Z2_STEP=MCU_M5_STEP , Z2_DIR=MCU_M5_DIR , Z2_ENABLE=MCU_M5_EN , Z2_TMCUART=MCU_M5_CS ,
+
+    E_STEP=MCU_M5_STEP  , E_DIR=MCU_M5_DIR  , E_ENABLE=MCU_M5_EN  , E_TMCUART=MCU_M5_CS  ,
+
+    DRIVER_SPI_MOSI=MCU_SPI3_MOSI , # Used in case of SPI drivers such as TMC2240 or TMC5160
+    DRIVER_SPI_MISO=MCU_SPI3_MISO , # Used in case of SPI drivers such as TMC2240 or TMC5160
+    DRIVER_SPI_SCK=MCU_SPI3_SCK   , # Used in case of SPI drivers such as TMC2240 or TMC5160
+
+    X_STOP=MCU_M1_STOP , Y_STOP=MCU_M2_STOP , Z_STOP=MCU_M3_STOP ,
+    PROBE_INPUT=MCU_PROBE2 ,
+    RUNOUT_SENSOR=MCU_M4_STOP ,
+
+    E_HEATER=MCU_HE0       , E_TEMPERATURE=MCU_TH0   ,
+    BED_HEATER=MCU_BED_OUT , BED_TEMPERATURE=MCU_THB ,
+
+    FILTER_FAN=MCU_FAN0 ,
+    CONTROLLER_FAN=MCU_FAN1 ,
+
+    CHAMBER_TEMPERATURE=MCU_TH1 ,
+
+    LIGHT_OUTPUT=MCU_HE1 ,
+    STATUS_NEOPIXEL=MCU_RGB1 ,
+    
+    SERVO_PIN=MCU_PROBE1 ,