v.4.2.3 docker build always fails because it cannot find package Tools.TableauServerRestApi

[til-jmac]

@zhuoyanggao Since v4.2.3 the docker build process is broken, with the error as described in https://github.com/tableau/Logshark/issues/165

The following commit appears to be the cause: https://github.com/tableau/Logshark/commit/d0c0ca9076307844e2c686436a6b77b0c680f88b#diff-6fe1e64645078ab18848d369ae5ee3d3f9ff22943ae39c5a84d61f087635daeb

Reverting this change so that the package can be found in the relevant path in the source code resolves the issue. Any reason this can't be updated in the latest version so that we can use it in docker?

Credit to @petersilv for spotting this