rename vendor tests

diff --git a/t/10sqlite_common.t b/t/10_01sqlite_common.t
similarity index 100%
rename from t/10sqlite_common.t
rename to t/10_01sqlite_common.t

diff --git a/t/11mysql_common.t b/t/10_02mysql_common.t
similarity index 100%
rename from t/11mysql_common.t
rename to t/10_02mysql_common.t

diff --git a/t/12pg_common.t b/t/10_03pg_common.t
similarity index 100%
rename from t/12pg_common.t
rename to t/10_03pg_common.t

diff --git a/t/13db2_common.t b/t/10_04db2_common.t
similarity index 100%
rename from t/13db2_common.t
rename to t/10_04db2_common.t

diff --git a/t/14ora_common.t b/t/10_05ora_common.t
similarity index 100%
rename from t/14ora_common.t
rename to t/10_05ora_common.t

diff --git a/t/15sybase_common.t b/t/10_06sybase_common.t
similarity index 100%
rename from t/15sybase_common.t
rename to t/10_06sybase_common.t

diff --git a/t/16mssql_common.t b/t/10_07mssql_common.t
similarity index 100%
rename from t/16mssql_common.t
rename to t/10_07mssql_common.t

diff --git a/t/17sqlanywhere_common.t b/t/10_08sqlanywhere_common.t
similarity index 100%
rename from t/17sqlanywhere_common.t
rename to t/10_08sqlanywhere_common.t

diff --git a/t/18firebird_common.t b/t/10_09firebird_common.t
similarity index 100%
rename from t/18firebird_common.t
rename to t/10_09firebird_common.t

diff --git a/t/19informix_common.t b/t/10_10informix_common.t
similarity index 100%
rename from t/19informix_common.t
rename to t/10_10informix_common.t