flatten modules to repo root, vendor deps, repair Eclipse build paths

Move api, engine, ui-console and ui-desktop out of modules/ up to the
repo root and drop the empty exception project (GuessMarketException now
lives in api).

Vendor gson, jaxb, okhttp, openjfx and tomcat under lib/, and group the
JUnit standalone jar into lib/junit/ alongside them.

Rewrite every .classpath: drop the copy-pasted optional="true" that was
masking real build path errors, point the library entries at ../lib/,
and put the JUnit jar on the test source folders so the placeholder
AppTest classes compile.

ui-desktop: take the JavaFX jars off the modulepath (there is no
module-info.java, so module="true" left the packages unresolvable) and
add a Launcher that calls Application.launch, avoiding the "JavaFX
runtime components are missing" check without VM arguments.

engine: add LocalGuessMarketService and the GuessMarketContext provider
interface, and give GuessMarketException the no-arg and cause
constructors they need.

1 files changed, 0 insertions, 34 deletions

diff --git a/modules/ui-desktop/.classpath b/modules/ui-desktop/.classpath
deleted file mode 100644
index 7d4bc5c..0000000
--- a/modules/ui-desktop/.classpath
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-    <!-- Defines your source folder -->
-  <classpathentry kind="src" output="bin/classes" path="src/main/java"> 
-    <attributes>
-      <attribute name="optional" value="true"/>
-  </attributes>
-  </classpathentry>
-  <classpathentry kind="src" output="bin/test-classes" path="src/test/java">
-    <attributes>
-      <attribute name="optional" value="true"/>
-      <attribute name="test" value="true"/>
-    </attributes>
-  </classpathentry>
-    <!-- Defines the standard Java System Library -->
-    <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
-    <!-- Defines where compiled .class files go -->
-  <classpathentry kind="output" path="bin"/>    
-
-  <!-- Required OpenJFX JARs explicitly placed on the Modulepath -->
-        <classpathentry kind="lib" path="/usr/share/openjfx/lib/javafx.base.jar">
-                <attributes><attribute name="module" value="true"/></attributes>
-        </classpathentry>
-        <classpathentry kind="lib" path="/usr/share/openjfx/lib/javafx.controls.jar">
-                <attributes><attribute name="module" value="true"/></attributes>
-        </classpathentry>
-        <classpathentry kind="lib" path="/usr/share/openjfx/lib/javafx.graphics.jar">
-                <attributes><attribute name="module" value="true"/></attributes>
-        </classpathentry>
-        <classpathentry kind="lib" path="/usr/share/openjfx/lib/javafx.fxml.jar">
-                <attributes><attribute name="module" value="true"/></attributes>
-        </classpathentry>
-</classpath>
-