Fix window frame problems

New tests, reimplemented EXCLUDE clause, and assorted changes

MSSQLServer compatibility enhancements

Extend dictionary with `discard`, `enhancements` and `nolock` terms.

Adjust style and remove the `SQLServerSample` as it seems redundant with the
unit test present.

Add TransactionStore to MVStore jar

Add a dedicated example for `MSSQLServer` compatibility mode, that
shows all DBMS-specific features in a central, user-friendly place.

Add support for `create table test(id int primary key identity)` statements,
which are common in the SQLServer world.

Ignore table hints (e.g. "SELECT * FROM table WITH (NOLOCK)"), that form a
valid expression in SQL Server.

Reference:
https://docs.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql-table?view=sql-server-2017

Update Maven build instruction and fix some problems

Upgrade maven-surefire-plugin

The current version has a dependency on an outdated commons-lang version, which throws a NPE when building H2 with Java 11:

```
Caused by: java.lang.NullPointerException
    at org.apache.maven.surefire.shade.org.apache.commons.lang3.SystemUtils.isJavaVersionAtLeast (SystemUtils.java:1626)
    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.createSurefireBootDirectoryInTemp (AbstractSurefireMojo.java:2904)
    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.getSurefireTempDir (AbstractSurefireMojo.java:2129)
    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.getForkConfiguration (AbstractSurefireMojo.java:1967)
    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider (AbstractSurefireMojo.java:1111)
    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked (AbstractSurefireMojo.java:954)
    at org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute (AbstractSurefireMojo.java:832)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:954)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
```

Upgrading the `maven-surefire-plugin` fixes this

Throw COLUMN_IS_REFERENCED_1 instead of VIEW_IS_INVALID_2 from DROP COLUMN