Export named dap client

[jbr]

This may help address #89, in that at least now it will be require("@divviup/dap").DAPClient

[coveralls]

Pull Request Test Coverage Report for Build 3192488470

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 91.452%

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Totals
Change from base Build 3192372211:	0.0%
Covered Lines:	983
Relevant Lines:	1044

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💛 - Coveralls