Improve LTI Tool Matching During Common Cartridge Import

Currently when Lessons is importing a Common Cartridge it looks for a registered tool to match the incoming link to so that it has a key and secret.   If it cannot find a tool with the URL, it makes a new empty tool with no secret and connects the link to the tool - the tools cannot be launched - until they are clocked once and a secret is set for the newly created tool.

The import code does remove the query string when looking for tools to avoid a crazy proliferation of new tools.

This works but is less than ideal.   The URL matching should try a little harder to find a tool before giving up and making a new tool that is missing a secret.

The way this will be done is

• Look for a local tool with an exact match
• Next we snip off the query string and check for a local tool
• Next we look for a local tool that has a prefix match that at least includes protocol and host

Then we go through the global tools following the same priority:

• Look for a global tool with an exact match
• Next we snip off the query string and check for a global tool
• Next we look for a global tool that has a prefix match that at least includes protocol and host

After all that if we can't find a matching tool, we punt and make a new tool without a secret (current behavior).

The local comes first to allow for an override - but in general - the most common case is that there will be no per-site (i.e. local) tools installed in the site so they will just find globally installed tools.  And if you disallow per-site tool creation, then the fact that per-site tools are checked first does not matter.