feat: Added initial Trimming support.

[HavenDV]

Closes #20

But because preview version of System.Memory.Data does not explicitly support net6.0, this warning appears here

0>System.Text.Encodings.Web.targets(4,5): Warning  : System.Text.Encodings.Web 9.0.0-preview.4.24266.19 doesn't support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings> in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
0>Microsoft.Bcl.AsyncInterfaces.targets(4,5): Warning  : Microsoft.Bcl.AsyncInterfaces 9.0.0-preview.4.24266.19 doesn't support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings> in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
0>System.Text.Json.targets(4,5): Warning  : System.Text.Json 9.0.0-preview.4.24266.19 doesn't support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings> in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
0>System.Memory.Data.targets(4,5): Warning  : System.Memory.Data 9.0.0-preview.4.24266.19 doesn't support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings> in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.

There are two ways out:

• Ignore, this can work without problems
• Add #ifdef/ MSBuild Conditions to use old behavior for net6 and new for net8/netstandard

I'm waiting for feedback