template.c: port all CLI arguments into the script

src/template.c:
1. Port all command line arguments into script `bytebeat_generator.py`
2. Remove the submodule lib/c-argh

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "lib/c-argh"]
-	path = lib/c-argh
-	url = git@git.disroot.org:80486DX2-66/c-argh.git

bytebeat_compiler.py

@@ -78,6 +78,8 @@ if __name__ == "__main__":
 		help="length (seconds)")
 	parser.add_argument("-a", "--no-return", default=False, action="store_true",
 		help="do not insert return statement before the code")
+	parser.add_argument("-q", "--silent", default=False, action="store_true",
+		help="do not output anything during generation")
 	args = parser.parse_args()
 
 	bytebeat_contents = read_from_file_or_stdin(args.file).strip()
@@ -113,6 +115,8 @@ if __name__ == "__main__":
 		args.channels, substitute)
 	substitute = substitute_var("seconds",
 		args.seconds, substitute)
+	substitute = substitute_var("silent_mode",
+		"true" if args.silent else "false", substitute)
 	rewrite_file(PATHS["substitute"], substitute)
 
 	# Compile by invoking the shell script

lib/c-argh

@@ -1 +0,0 @@
-Subproject commit 540d94bd1d41fb19c82c50904c2322c93e6718b3

src/template.c

@@ -7,9 +7,6 @@
 #include <string.h>
 #include <time.h>
 
-// libraries
-#include "../lib/c-argh/argh.h"
-
 // constants
 #if defined(_WIN32)
 # define __ANSI_CLEAR_STRING "\r"
@@ -52,7 +49,7 @@ const char* dbgpnt_labels[3] = { "memory allocation",
 	(unsigned int)(sizeof(dbgpnt_labels) / sizeof(dbgpnt_labels[0]))
 
 // global variables
-bool silent_mode = false;
+#define SILENT_MODE `silent_mode`
 
 // function prototypes
 SAMPLE_TYPE
@@ -67,22 +64,14 @@ bytebeat(long double w)
 	`bytebeat_contents`;
 }
 
-#define USAGE "render_bytebeat [-s | --silent]"
-
 int
-main(int argc, char** argv)
+main(void)
 {
-	// * parse CLI arguments
-	ARGH_PARSE {
-		ARGH_NEXT();
-		if ARGH_BOOL("-s", "--silent") { silent_mode = true; }
-	}
-
 	// * log -> welcome
 	printf(":: C bytebeat generator runtime unit\n");
 	fflush(stdout);
 
-	if (!silent_mode) {
+	if (!SILENT_MODE) {
 		printf(
 		  "\n"
 		  "Sample rate: %d Hz\n"
@@ -142,7 +131,7 @@ main(int argc, char** argv)
 
 		// 6. log
 		if (
-		  !silent_mode &&
+		  !SILENT_MODE &&
 		  (w % FREQUENCY_OF_STATUS_REPORTING == 0 ||
 		   w >= PRODUCT - 1 /* writing last sample */)) {
 			printf(