MDEV-10294: MTR using --valgrind-option to specify a tool / fixing callgrind [10.1] (#200)
MDEV-10294: MTR using --valgrind-option to specify a tool / fixing callgrind [10.1] (#200)

* MDEV-10294: Put testname into environment as MTR_TEST_NAME during MTR

* MDEV-10294: restructure mtr to allow --valgrind-option=--tool=XXX

* MDEV-10294: mtr valgrind - supressions all tools + feedback

natsys/mariadb_10.2,natsys/mariadb_10.2,ollie314/server,natsys/mariadb_10.2,flynn1973/mariadb-aix,ollie314/server,natsys/mariadb_10.2,ollie314/server,ollie314/server,flynn1973/mariadb-aix,ollie314/server,ollie314/server,flynn1973/mariadb-aix,natsys/mariadb_10.2,ollie314/server,natsys/mariadb_10.2,ollie314/server,flynn1973/mariadb-aix,flynn1973/mariadb-aix,flynn1973/mariadb-aix,natsys/mariadb_10.2,flynn1973/mariadb-aix,ollie314/server,flynn1973/mariadb-aix,natsys/mariadb_10.2,natsys/mariadb_10.2,ollie314/server,flynn1973/mariadb-aix,ollie314/server,natsys/mariadb_10.2,flynn1973/mariadb-aix,flynn1973/mariadb-aix,natsys/mariadb_10.2