Fix VSCode Makefile to support multiple .c files (raysan5#4391)

Updated the VSCode Makefile to allow compilation of multiple .c files instead of just one (main.c).
- Replaced `SRC` and `OBJS` definitions to dynamically include all .c and .h files in the project.
- This change enables automatic handling of any number of source files specifically in the VSCode setup.

projects/VSCode/Makefile

@@ -352,9 +352,9 @@ SRC_DIR = src
 OBJ_DIR = obj
 
 # Define all object files from source files
-SRC = $(call rwildcard, *.c, *.h)
+SRC = $(call rwildcard, ./, *.c, *.h)
 #OBJS = $(SRC:$(SRC_DIR)/%.c=$(OBJ_DIR)/%.o)
-OBJS ?= main.c
+OBJS = $(patsubst %.c,%.o,$(filter %.c,$(SRC)))
 
 # For Android platform we call a custom Makefile.Android
 ifeq ($(PLATFORM),PLATFORM_ANDROID)