treewide: use APK compatible version schema

Different from OPKG, APK uses a deterministic version schema which chips
the version into chunks and compares them individually. This enforces a
certain schema which was previously entirely flexible.

 - Releases are added at the very and end prefixed with an `r` like
`1.2.3-r3`.
- Hashes are prefixed with a `~` like `1.2.3~abc123`.
- Dates become semantic versions, like `2024.04.01`
- Extra tags are possible like `_git`, `_alpha` and more.

For full details see the APK test list:
https://gitlab.alpinelinux.org/alpine/apk-tools/-/blob/master/test/version.data

Signed-off-by: Paul Spooren <mail@aparcar.org>

include/package-defaults.mk

@@ -23,7 +23,7 @@ define Package/Default
   SOURCE:=$(patsubst $(TOPDIR)/%,%,$(patsubst $(TOPDIR)/package/%,feeds/base/%,$(CURDIR)))
   ifneq ($(PKG_VERSION),)
     ifneq ($(PKG_RELEASE),)
-      VERSION:=$(PKG_VERSION)-$(PKG_RELEASE)
+      VERSION:=$(PKG_VERSION)-r$(PKG_RELEASE)
     else
       VERSION:=$(PKG_VERSION)
     endif