Fix flags usage and make Commander Flags capable.

- Programs should exit on Flags parse error.
- Commander now accepts a string vector for interop with Flags.

test/buffer.cc

@@ -90,6 +90,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	sctest::SimpleSuite suite;

test/coord2d.cc

@@ -270,6 +270,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	SimpleSuite suite;

test/dictionary.cc

@@ -122,6 +122,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	sctest::SimpleSuite suite;

test/madgwick.cc

@@ -245,6 +245,7 @@ main(int argc, char **argv)
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	sctest::SimpleSuite	suite;

test/math.cc

@@ -133,6 +133,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	sctest::SimpleSuite suite;

test/orientation.cc

@@ -99,6 +99,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	SimpleSuite suite;

test/quaternion.cc

@@ -442,6 +442,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	SimpleSuite suite;

test/simple_suite_example.cc

@@ -66,6 +66,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	sctest::SimpleSuite suite;

test/stringutil.cc

@@ -149,6 +149,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	sctest::SimpleSuite suite;

test/tlv.cc

@@ -151,6 +151,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	sctest::SimpleSuite suite;

test/vector.cc

@@ -442,6 +442,7 @@ main(int argc, char *argv[])
 	if (parsed != scsl::Flags::ParseStatus::OK) {
 		std::cerr << "Failed to parse flags: "
 			  << scsl::Flags::ParseStatusToString(parsed) << "\n";
+		exit(1);
 	}
 
 	SimpleSuite suite;