[feature-wip](array-type) Add codes and UT for array_contains and array_position functions (#8401) (#8589)
array_contains function Usage example:
1. create table with ARRAY column, and insert some data:
```
> select * from array_test;
+------+------+--------+
| k1 | k2 | k3 |
+------+------+--------+
| 1 | 2 | [1, 2] |
| 2 | 3 | NULL |
| 4 | NULL | [] |
| 3 | NULL | NULL |
+------+------+--------+
```
2. enable vectorized:
```
> set enable_vectorized_engine=true;
```
3. select with array_contains:
```
> select k1,array_contains(k3,1) from array_test;
+------+-------------------------+
| k1 | array_contains(`k3`, 1) |
+------+-------------------------+
| 3 | NULL |
| 1 | 1 |
| 2 | NULL |
| 4 | 0 |
+------+-------------------------+
```
4. also we can use array_contains in where condition
```
> select * from array_test where array_contains(k3,1);
+------+------+--------+
| k1 | k2 | k3 |
+------+------+--------+
| 1 | 2 | [1, 2] |
+------+------+--------+
```
5. array_position usage example
```
> select k1,k3,array_position(k3,2) from array_test;
+------+--------+-------------------------+
| k1 | k3 | array_position(`k3`, 2) |
+------+--------+-------------------------+
| 3 | NULL | NULL |
| 1 | [1, 2] | 2 |
| 2 | NULL | NULL |
| 4 | [] | 0 |
+------+--------+-------------------------+
```
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