fix(build-toolchain): migrate versioning to setuptools_scm

versioning of package now handled through setuptools_scm. Git tag therefore
takes precedence and manually setting a version in setup.cfg is redundant.

In addition, setuptools_scm handles proper inclusion of sdist non-python files
and simplifies bdist packaging.

MANIFEST.in

@@ -1,2 +0,0 @@
-recursive-include src/httpaste/schema *.json
-recursive-incude src/httpaste/backend *.sql

pyproject.toml

@@ -1,7 +1,8 @@
 [build-system]
 requires = [
     "setuptools",
-    "wheel"
+    "wheel",
+    "setuptools-scm[toml]"
 ]
 build-backend = "setuptools.build_meta"
 
@@ -10,3 +11,5 @@ max_line_length = 80
 aggressive = 3
 recursive = true
 in-place = true
+
+[tool.setuptools_scm]

setup.cfg

@@ -1,6 +1,5 @@
 [metadata]
 name = httpaste-victorykit
-version = 1.0.9-alpha
 author = Tiara Rodney
 author_email = t.rodney@victoryk.it
 description = a versatile HTTP pastebin
@@ -38,3 +37,7 @@ console_scripts =
 [options.packages.find]
 where = src
 
+[options.package_data]
+* = 
+	*.json
+	*.sql