catalog: add generated v3 JAXB binding and ex-2 test data

The ex-2 schema describes a nested Guess-Market/GM-events document in
which every event carries its pricing mechanism inline, as either a
GM-LMSR element holding the liquidity parameter b or a GM-order-book
element holding the allow-mint, initial and d attributes, instead of
naming a mechanism and passing its parameters separately.

Add the xjc-generated classes for that schema under catalog.model.v3,
along with the fixtures the loader will be tested against: small.xml
with two events, one per mechanism, multiple.xml with four, and two
negative cases -- error-2.xml, where a market maker is funded with
zero initial cash, and error-3.xml, where a market maker points at
event id 12, which no event declares -- so the cross-reference and
funding checks have something to reject.

The binding covers the GM-events subtree only. The GM-users half of
the document and the per-event id element are not bound yet, so
nothing reads these classes so far.

1 files changed, 48 insertions, 0 deletions

diff --git a/test-data/ex-2/small.xml b/test-data/ex-2/small.xml
new file mode 100644
index 0000000..640aa3e
--- /dev/null
+++ b/test-data/ex-2/small.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Guess-Market  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="GM-EX2-Schema.xsd">
+        <GM-events>
+                <GM-event name="Mujtaba is Dead">
+                        <id>1</id>
+                        <description>This event gambles if Mujtaba is a live or not. it will be determined if he will be shown in public until 31.8.26</description>
+                        <commission type="on-purchase">5</commission>
+                        <GM-options>
+                                <GM-option>Hell Yea !</GM-option>
+                                <GM-option>No way !</GM-option>
+                        </GM-options>
+                        <GM-method>
+                                <GM-LMSR>
+                                        <b>100</b>
+                                </GM-LMSR>
+                        </GM-method>
+                </GM-event>
+                <GM-event name="World Cap Winner">
+                        <id>2</id>
+                        <description>Who do you think will win the world cap ?</description>
+                        <commission type="on-close">15</commission>
+                        <GM-options>
+                                <GM-option>Argentina</GM-option>
+                                <GM-option>Spain</GM-option>
+                        </GM-options>
+                        <GM-method>
+                                <GM-order-book allow-mint="true" initial="100" d="1"/>
+                        </GM-method>
+                </GM-event>
+        </GM-events>
+        <GM-users>
+                <GM-user name="Avrum">
+                        <initial-cash>1000</initial-cash>
+                        <GM-market-maker>
+                                <event id="2"/>
+                        </GM-market-maker>
+                </GM-user>
+                <GM-user name="Tikva">
+                        <initial-cash>10000</initial-cash>
+                        <GM-market-maker>
+                                <event id="1"/>
+                        </GM-market-maker>
+                </GM-user>
+                <GM-user name="Menash">
+                        <initial-cash>100</initial-cash>
+                </GM-user>
+        </GM-users>
+</Guess-Market>