Add FQL and rework /transaction endpoint

financer-server/pom.xml

@@ -57,6 +57,11 @@
             <groupId>org.glassfish.jaxb</groupId>
             <artifactId>jaxb-runtime</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.antlr</groupId>
+            <artifactId>antlr4-runtime</artifactId>
+            <version>4.8-1</version>
+        </dependency>
         <!-- Financer dependencies -->
         <dependency>
             <groupId>de.77zzcx7.financer</groupId>
@@ -93,6 +98,28 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.antlr</groupId>
+                <artifactId>antlr4-maven-plugin</artifactId>
+                <version>4.8-1</version>
+                <executions>
+                    <execution>
+                        <id>antlr</id>
+                        <goals>
+                            <goal>antlr4</goal>
+                        </goals>
+                        <configuration>
+                            <visitor>true</visitor>
+                            <listener>false</listener>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
     <reporting>
         <plugins>
             <plugin>