Extend authorization

added functions:

• http.setAuthorization TYPE TOKEN|HASH ... to set Authorization header for JWT or NTLM
• setAccept ACCEPT
• http.addHeader HEADER_LINE

Other things:

• In the docs a sample for JWT was added

rest-api-client.sh

@@ -29,6 +29,7 @@
   http_cfg__cacheDir=/var/tmp/http-cache
   http_cfg__UA="${http_cfg__about}"
   http_cfg__prjurl="https://git-repo.iml.unibe.ch/iml-open-source/bash-rest-api-client"
+  http_cfg__docsurl="https://os-docs.iml.unibe.ch/bash-rest-api-client/"
 
 # --- curl meta infos to collect
 #     see variables in man curl --write-out param
@@ -717,7 +718,8 @@ $http_cfg__about
 
 This is a bash solution to script REST API calls.
 
-Source:$http_cfg__prjurl
+Source: <$http_cfg__prjurl>
+Docs: <$http_cfg__docsurl>
 License: GNU GPL 3