Enables auto-creating the schema on imports; Resolves #765

[yuce]

Overview

Implements auto-creating the schema on import

Resolves #765

Example:

$ pilosa import --sort --create -i repo -f stargazer stargazer.csv --frame-inverse-enabled --index-time-quantum YM --frame-cache-size 3000

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• I have updated the documentation.
• I have resolved any merge conflicts.
• I have included tests that cover my changes.
• All new and existing tests pass.

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[jaffee]

noice

[yuce]

great, thanks!