[spark] Support catalog-qualified CREATE TABLE LIKE

[kerwin-zk]

Purpose

This allows CREATE TABLE LIKE to resolve source and target tables through Paimon catalogs when either side uses a catalog-qualified identifier.

Examples:

-- target and source are both catalog-qualified
CREATE TABLE paimon.default.target_tbl LIKE paimon.default.source_tbl;

-- only the target table is catalog-qualified
CREATE TABLE paimon.default.target_tbl LIKE source_tbl;

-- only the source table is catalog-qualified
CREATE TABLE target_tbl LIKE paimon.default.source_tbl;

Tests

CI