Add standard I/O helper functions.

https://github.com/quixdb/squash/issues/7

Signed-off-by: Evan Nemerson <evan@coeus-group.com>
Add squash CLI tool.

https://github.com/quixdb/squash/issues/4

Signed-off-by: Evan Nemerson <evan@coeus-group.com>
Assorted minor CS and build system fixes.

Signed-off-by: Evan Nemerson <evan@coeus-group.com>
Add link to documentation to README

Signed-off-by: Evan Nemerson <evan@coeus-group.com>