Update configuration for conan 2

Implements: ECDC-4551

Author: milnowak

.conanignore

@@ -0,0 +1,2 @@
+LICENSE
+README.md

README.md

@@ -9,23 +9,3 @@ conan config install http://github.com/ess-dmsc/conan-configuration.git
 ```
 
 **Beware, installing this configuration will delete any other other remotes you may have configured.**
-
-This is not necessary for conan2, but the packages are built with conan recipes in v1 format, and so `pip install conan<2` (or similar) must be used
-
-The important things done by installing this configuration are:
-- setting the remotes to the ones we use in our projects
-- adding the compiler.libc setting for gcc and clang, so that packages can be built against glibc or musl, this is useful for builds on Alpine Linux where musl is used.
-
-Conan2 uses remotes.json and completely ignores remotes.txt, as per https://docs.conan.io/1/migrating_to_2.0/config_files.html#remotes-txt and conan v1 will already use this if present
-
-If you update `settings.yml` using one automatically generated by Conan then make sure you retain this change:
-```yml
-compiler:
-  ...
-  gcc:
-    ...
-    libc: [None, glibc, musl]
-  clang:
-    ..
-    libc: [None, glibc, musl]
-```

remotes.json

@@ -2,7 +2,7 @@
 	"remotes": [
 	 {
 		"name": "conancenter",
-		"url": "https://center.conan.io",
+		"url": "https://center2.conan.io",
 		"verify_ssl": true
 	 },
 	 {