[browser] Move WasmAppBuilder into transport -> SDK

[pavelsavara]

• so that we could do simple build tasks even if the wasm workload is not installed
• remove WasmAppBuilder from workload and use the one in SDK
• move some of the BlazorWasmSdk tasks to this transport in runtime repo. In order to make inner loop faster.

There is prior art in BrowserDebugHost.

When building in-tree replace the tasks with the local version.

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Issue Details

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• so that we could do simple build tasks even if the wasm workload is not installed
• remove WasmAppBuilder from workload and use the one in SDK
• move some of the BlazorWasmSdk tasks to this transport in runtime repo. In order to make inner loop faster.

There is prior art in BrowserDebugHost.

Author:	pavelsavara
Assignees:	pavelsavara, maraf
Labels:	arch-wasm, area-Build-mono
Milestone:	8.0.0

[pavelsavara]

cc @radical @akoeplinger

[pavelsavara]

@lewing could you please advise us how to do it ?