chore: Also renamed structs to follow naming conventions.

include/vieter_package.h

@@ -9,22 +9,22 @@
 #include <archive.h>
 #include <archive_entry.h>
 
-typedef struct pkg Pkg;
+typedef struct vieter_package vieter_package;
 
 /*
  * Parse package file into something usable by libvieter.
  * The pointer returned by this function will need to freed at a later point.
  */
-Pkg *vieter_package_read_archive(const char *pkg_path);
+vieter_package *vieter_package_read_archive(const char *pkg_path);
 
 /*
  * Deallocate a package.
  */
-void vieter_package_free(Pkg ** ptp);
+void vieter_package_free(vieter_package ** ptp);
 
 /*
  * Create string that will become the package's desc file.
  */
-char *vieter_package_to_description(Pkg *pkg);
+char *vieter_package_to_description(vieter_package *pkg);
 
 #endif