fix: refactor code structure into files (#8)

closes #7

Co-authored-by: HiveBeats <e1lama@protonmail.com>
Reviewed-on: #8

build.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 CC="${CXX:-cc}"
-$CC -Wall -std=c11 ./main.c ./parser.c -lm -lraylib -o ./bin/main
+$CC -Wall -std=c11 ./main.c ./utils.c ./ring_buffer.c ./oscillator.c ./parser.c ./export.c -lm -lraylib -o ./bin/main