Attempt support for alpha versions

Author: bdowning

.bumpversion.cfg

@@ -1,5 +1,19 @@
 [bumpversion]
 current_version = 0.3.16
+parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(-(?P<release>.*)-(?P<build>\d+))?
+serialize = 
+	{major}.{minor}.{patch}-{release}-{build}
+	{major}.{minor}.{patch}
 commit = True
 
 [bumpversion:file:pyproject.toml]
+
+[bumpversion:part:release]
+first_value = regular
+optional_value = regular
+values = 
+	alpha
+	beta
+	rc
+	test
+	regular