Jinja2: Update to 3.1.2, rename source package

This renames the source package from Jinja2 to python-jinja2 to match
other Python packages.

This also updates the package license files, title, and list of
dependencies.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>
(cherry picked from commit 572387f0cb)

lang/python/python-jinja2/Makefile

@@ -0,0 +1,45 @@
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=python-jinja2
+PKG_VERSION:=3.1.2
+PKG_RELEASE:=1
+
+PYPI_NAME:=Jinja2
+PKG_HASH:=31351a702a408a9e7595a8fc6150fc3f43bb6bf7e319770cbc0db9df9437e852
+
+PKG_MAINTAINER:=Michal Vasilek <michal.vasilek@nic.cz>
+PKG_LICENSE:=BSD-3-Clause
+PKG_LICENSE_FILES:=LICENSE.rst
+PKG_CPE_ID:=cpe:/a:pocoo:jinja2
+
+include ../pypi.mk
+include $(INCLUDE_DIR)/package.mk
+include ../python3-package.mk
+
+define Package/python3-jinja2
+  SECTION:=lang
+  CATEGORY:=Languages
+  SUBMENU:=Python
+  TITLE:=Very fast and expressive template engine
+  URL:=https://palletsprojects.com/p/jinja/
+  DEPENDS:= \
+      +python3-light \
+      +python3-asyncio \
+      +python3-logging \
+      +python3-urllib \
+      +python3-markupsafe
+endef
+
+define Package/python3-jinja2/description
+Jinja2 is a full featured template engine for Python. It has full
+unicode support, an optional integrated sandboxed execution
+environment, widely used and BSD licensed.
+endef
+
+$(eval $(call Py3Package,python3-jinja2))
+$(eval $(call BuildPackage,python3-jinja2))
+$(eval $(call BuildPackage,python3-jinja2-src))