Bedework web client: admin methods

<!-- https://jarcasting.com/artifacts/org.bedework.bwwebcl/bw-calendar-client-admin/ -->
<dependency>
    <groupId>org.bedework.bwwebcl</groupId>
    <artifactId>bw-calendar-client-admin</artifactId>
    <version>4.0.2</version>
</dependency>

// https://jarcasting.com/artifacts/org.bedework.bwwebcl/bw-calendar-client-admin/
implementation 'org.bedework.bwwebcl:bw-calendar-client-admin:4.0.2'

// https://jarcasting.com/artifacts/org.bedework.bwwebcl/bw-calendar-client-admin/
implementation ("org.bedework.bwwebcl:bw-calendar-client-admin:4.0.2")

'org.bedework.bwwebcl:bw-calendar-client-admin:jar:4.0.2'

<dependency org="org.bedework.bwwebcl" name="bw-calendar-client-admin" rev="4.0.2">
  <artifact name="bw-calendar-client-admin" type="jar" />
</dependency>

@Grapes(
@Grab(group='org.bedework.bwwebcl', module='bw-calendar-client-admin', version='4.0.2')
)

libraryDependencies += "org.bedework.bwwebcl" % "bw-calendar-client-admin" % "4.0.2"

[org.bedework.bwwebcl/bw-calendar-client-admin "4.0.2"]