VanillaPlus Structures

### v19
- Fix configuration section misspelling carried forward from vanilla. `Refridgerator` changed to `Refrigerator`. **Please update your configuration.**
- Fix incorrect structure defaults for tek generator. Fixes fuel consumption and display.
- The following structures now show their default (normally hidden) engrams if modified: *Metal water tap, stone water tap*
  This will be added as a configuration option in the future.
- Switch to soft class paths across entire API. Improves consistency with vanilla API. Prevents various cases where invalid class references lead to inconsistent engram handling.
- Fix various structure class discovery issues. Use of soft class paths now also correctly allows engram discovery even for unloaded structures.
- Removal of invalid default items now only occurs for Smithy and Tek Replicator.
  *Please report any similar issues for other structures, as this specific removal of 'None' items is only necessary to resolve a vanilla bug.*
- Compatibility engram discovery method is now force enabled for parents for all structures. This fixes some client prediction issues and otherwise ensures consistent discovery. *This is cached and only occurs once per structure type*
- Added main configuration option `bDebugLogClient` to debug various (future) interactions between `VanillaPlusClient` and server. Disabled by default.
- Added main configuration option `bDebugLogEngrams` to dump some engram and structure logic to gameplay log. Disabled by default.
- Added main configuration option `bDumpStructurePaths` to log all discovered structures on cache rebuild. Disabled by default.