First commit with working display

managed_components/lvgl__lvgl/tests/makefiles/.gitignore

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+test_file

managed_components/lvgl__lvgl/tests/makefiles/Makefile

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+LVGL_PATH := $(CURDIR)/../..
+$(info LVGL_PATH is set to: $(LVGL_PATH))
+include ../../lvgl.mk
+
+CSRCS += test.c
+CFLAGS += -Werror -DLV_CONF_SKIP=1 -DLV_BUILD_TEST=1 -I$(LVGL_PATH)/..
+COBJS := $(patsubst %.c, %.o, $(CSRCS))
+
+test_file: $(COBJS)
+	$(CC) -o $@ $^

managed_components/lvgl__lvgl/tests/makefiles/test.c

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+#if LV_BUILD_TEST
+#include <stdio.h>
+#include "../../lvgl.h"
+
+int main(void)
+{
+    lv_init();
+    return 0;
+}
+#endif