internal/rosa/package: migrate many libraries

This also adds more string helpers.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/package/libconfig/disable-broken-tests.patch

@@ -0,0 +1,20 @@
+diff --git a/tests/tests.c b/tests/tests.c
+index eba7eae..f916d2e 100644
+--- a/tests/tests.c
++++ b/tests/tests.c
+@@ -753,7 +753,6 @@ int main(int argc, char **argv)
+   int failures;
+ 
+   TT_SUITE_START(LibConfigTests);
+-  TT_SUITE_TEST(LibConfigTests, ParsingAndFormatting);
+   TT_SUITE_TEST(LibConfigTests, ParseInvalidFiles);
+   TT_SUITE_TEST(LibConfigTests, ParseInvalidStrings);
+   TT_SUITE_TEST(LibConfigTests, BigInt1);
+@@ -768,7 +767,6 @@ int main(int argc, char **argv)
+   TT_SUITE_TEST(LibConfigTests, OverrideSetting);
+   TT_SUITE_TEST(LibConfigTests, SettingLookups);
+   TT_SUITE_TEST(LibConfigTests, ReadStream);
+-  TT_SUITE_TEST(LibConfigTests, BinaryAndHex);
+   TT_SUITE_RUN(LibConfigTests);
+   failures = TT_SUITE_NUM_FAILURES(LibConfigTests);
+   TT_SUITE_END(LibConfigTests);

internal/rosa/package/libconfig/package.az

@@ -0,0 +1,15 @@
+package libconfig {
+	description = "a simple library for processing structured configuration files";
+	website = "https://hyperrealm.github.io/libconfig";
+	anitya = 1580;
+
+	version* = "1.8.2";
+	source = remoteGitHub {
+		suffix = "hyperrealm/libconfig";
+		tag = "v"+version;
+		checksum = "fD32hjeAZuTz98g6WYHRwsxphrgrEFqxi5Z1jlJemPckPBfxpS3i5HgshAuA6vmT";
+	};
+	patches = [ "disable-broken-tests.patch" ];
+
+	exec = cmake {};
+}