Import a jbang script not having the *.java extension is not possible

[jmini]

As discussed here jbangdev/jbang#676 there are cases where you do not have a .java extension for your Jbang script.

Reproducer<1/summary>

Example:

• In the folder ~/tmp/tmp2
• Create the file hello with this content:

///usr/bin/env jbang "$0" "$@" ; exit $?


import static java.lang.System.*;

public class hello {

    public static void main(String... args) {
        out.println("Hello World");
    }
}

Currently those files can not be selected:

[jmini]

Changing the way scripts are linked in the project as discussed in #47 (comment) would also help here.

Since you can add the extension to the linked file, even if the original file does not have it:

	<linkedResources>
		<link>
			<name>src/hello.java</name>
			<type>1</type>
			<location>/home/jbr/tmp/tmp2/hello</location>
		</link>
	</linkedResources>