Support for multiple games and keys per game, refactor, tweaks

* Update editorconfig for Dockerfile formatting
* Update Dockerfile to strip debug symbols
* Support pushing multiple highscores and use of Options to support traditional API mode
* Support sending and retrieving different highscore lists for a game based on a key
* Support retrieving partial highscore lists for client side pagination
* Use of vweb_global attribute for better performance (No mutex/shared variable) and immutability
* Support for a verification key that is used for checksumming score data with a private key to raise the difficulty for potential cheaters
* Add Logger for nicer console output and severity distinction
* Use of transactions in database for higher reliability
* Additional error checking for improved error recovery and reliability

Dockerfile

@@ -1,8 +1,8 @@
-FROM git.snrd.eu/sunred/vlang:alpine AS build
+FROM thevlang/vlang:alpine AS build
 
 WORKDIR /tmp/app
 COPY . .
-RUN v -prod -o highscore-server .
+RUN v -prod -ldflags "-s -w" -o highscore-server .
 
 FROM alpine:latest
 
@@ -10,6 +10,6 @@ RUN apk --no-cache add sqlite-libs
 
 WORKDIR /app
 COPY --from=build /tmp/app/highscore-server .
-COPY --from=build /tmp/app/config.example.toml ./config.toml
+COPY ./config.example.toml ./config.toml
 
 ENTRYPOINT [ "./highscore-server" ]