[Vectorized][UDF] support java-udaf

[zhangstar333]

Proposed changes

Issue Number: close#8389

Problem Summary:

This feature is used to support Java udaf. Users can create aggregate functions by self,
For example, we create Java udaf function by code below.

CREATE AGGREGATE FUNCTION simple_add (int) RETURNS int PROPERTIES (
"file"="file:///pathTo/java-udaf.jar",
"symbol"="org.apache.doris.udf.SimpleAdd",
"type"="JAVA_UDF"
);

file: indicate where user file is.
symbol: for java udaf means udaf class in this jar.
type: indicate this function is a java udf.

Users may have some necessary conditions
when implementing aggregate functions by self,
for example:

class SimpleAdd {
public static class State { some variables: example count agg: maybe a long type counter;
}
public State create() {
....... if need do some.......
return new State();
}
public void destroy(State s) {
....... if need do some destroy work.......
}
public void add(State s, Type val, [Type val2, .....]) {
do update work here;
like count agg function: you need plus 1
}
public void serialize(State s, DataOutputStream out) {
put you add result into buffer to serialize
}
public void deserialize(State state, DataInputStream in) {
deserialize get data from buffer before you put
}
public void merge(State s, State other) {
merge result from other state
}
public Type getValue(State s) {
return finally result
}
}

Checklist(Required)

1. Does it affect the original behavior: (Yes/No/I Don't know)
2. Has unit tests been added: (Yes/No/No Need)
3. Has document been added or modified: (Yes/No/No Need)
4. Does it need to update dependencies: (Yes/No)
5. Are there any changes that cannot be rolled back: (Yes/No)

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...

[morningman]

Hi @zhangstar333 , could you explain more about what does this PR do?
Because we already supported part of JAVA udf feature, so you need to explain what's new in your PR.

[HappenLee]

need also modify the doc，please

[HappenLee]

LGTM

[github-actions]

PR approved by at least one committer and no changes requested.