Joshua Lockerman 4ff6ac7b91 Initial Timescale-Licensed-Module and License-Key Implementation
This commit adds support for dynamically loaded submodules to timescaledb
as well an initial license-key implementation in the tsl subdirectory.
Dynamically loaded modules allow our users to determine which licenses they
wish to use for their version of timescaledb; if they wish to only use
Apache-Licensed code, they do not load the Timescale-Licensed submodule. Calls
from the Apache-Licensed code into the Timescale-Licensed submodule are
handled via dynamicaly-set function pointers; see tsl/src/Readme.module.md for
more details.

This commit also adds code for license keys for the ApacheOnly, Community, and
Enterprise editions. The license key determines which features are enabled,
and controls loading the submodule: when a license key that requires the
sub-module is installed, the module is automatically loaded.
Currently the ApacheOnly and Community license-keys are hardcoded to be
"ApacheOnly" and "Community" respectively. The first version of the enterprise
license-key is described in tsl/src/Readme.module.md
2019-01-02 15:43:48 -05:00
..
2018-12-06 13:27:12 -05:00