Avoid chopping single trailing lambda

[mattwzawislak]

Description

Adds in the ability to avoid chopping single trailing lambdas when the argument list up to and including the "=>" symbol doesn't need to be chopped.

This would take a snippet of code like

logging.AddFile(
    Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "server{0}.log"),
    o =>
    {
        o.MaxRollingFiles = 1;
        // ...
    }
);

And turn it into this (assuming configured line length isn't exceeded):

logging.AddFile(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "server{0}.log"), o =>
{
    o.MaxRollingFiles = 1;
    // ...
});

Without breaking directives or comments:

logging.AddFile(
#if DEBUG
    Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "server{0}.log"),
#else
    "server{0}.log",
#endif
    o =>
    {
        o.MaxRollingFiles = 1;
        // ...
    }
);

And avoids chopping when the lambda is not the last argument or there are multiple arguments:

logging.AddFile(
    "server{0}.log",
    cfg => cfg.Section("logging"),
    o =>
    {
        o.MaxRollingFiles = 1;
        // ...
    }
);

Related Issue

Closes #1865

Checklist

• My code follows the project's code style
  • always var
  • follow existing naming conventions
  • always this.
  • no pointless comments
• I will not force push after a code review of my PR has started
• I have added tests that cover my changes