Add generic IMU fusion and PMOD IRQ verification

soc/software/gps_system/tests/Makefile

@@ -0,0 +1,18 @@
+CC ?= gcc
+CFLAGS ?= -O2 -std=c11 -Wall -Wextra -Werror
+
+ROOT := ..
+TARGET := test_imu_calibration
+
+.PHONY: all run clean
+
+all: $(TARGET)
+
+$(TARGET): test_imu_calibration.c $(ROOT)/src/imu_calibration.c
+	$(CC) $(CFLAGS) -I$(ROOT)/header $^ -lm -o $@
+
+run: $(TARGET)
+	./$(TARGET)
+
+clean:
+	rm -f $(TARGET)