[coverage](fe)add jacoco coverage option on start_fe.sh

[pingchunzhang]

Proposed changes

Issue Number: close #xxx

add JACOCO_COVERAGE_OPT in start_fe.sh for collect system test coverage
JACOCO_COVERAGE_OPT format can be like
-javaagent:/var/local/jacoco/lib/jacocoagent.jar=includes=*,output=file,append=true,destfile=fe_cov.exec

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[pingchunzhang]

run buildall

[hello-stephen]

(From new machine)TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 51.12 seconds
stream load tsv: 560 seconds loaded 74807831229 Bytes, about 127 MB/s
stream load json: 20 seconds loaded 2358488459 Bytes, about 112 MB/s
stream load orc: 65 seconds loaded 1101869774 Bytes, about 16 MB/s
stream load parquet: 31 seconds loaded 861443392 Bytes, about 26 MB/s
insert into select: 29.7 seconds inserted 10000000 Rows, about 336K ops/s
storage size: 17162204341 Bytes