sodepends: fix listing binaries, check libdepends, libprovides

• This fixes the problem when a library is needed by multiple binaries in a package, and only the last binary was listed, because the previous list was overridden on every scan.
• Check the sonames provided by the package and compare it with provides=() specified in PKGBUILD. Warn if provided but not specified, error if specified but not provided.
• Check the sonames required by the package and compare it with depends=() specified in PKGBUILD. Warn if a package provides a requred soname but not specified, and if a specified soname is not needed.

Namcap/rules/sodepends.py

@@ -165,7 +165,7 @@ class SharedLibsRule(TarballRule):
 				for n in pkg_so_files:
 					if any(n.startswith(rp) for rp in rpaths):
 						rpath_files[os.path.basename(n)] = n
-			scanlibs(f, entry.name, rpath_files, liblist, libprovides)
+			scanlibs(f, entry.name, rpath_files, liblist, libdepends, libprovides)
 			f.close()
 
 		# Ldd all the files and find all the link and script dependencies