add typescript http client

[shanghaikid]

In this pr, I add a typescript client which implement all the method described in
https://milvus.io/api-reference/restful/v2.3.x/About.md

Now user is able to use milvus/zilliz cloud http api

import { HttpClient } from '@zilliz/milvus2-sdk-node';

const client = new HttpClient({
endpoint: 'http://**.zillizcloud.com/'
token: '' or username password
})
 
// APIs
client.createCollection
client.describeCollection
client.dropCollection
client.listCollection
client.insert
client.query
client.search
client.delete
client.get

[codecov]

Codecov Report

Merging #253 (58a5668) into main (54e98cd) will decrease coverage by 0.17%.
Report is 3 commits behind head on main.
The diff coverage is 91.78%.

❗ Current head 58a5668 differs from pull request most recent head b72797f. Consider uploading reports for the commit b72797f to get more accurate results

@@            Coverage Diff             @@
##             main     #253      +/-   ##
==========================================
- Coverage   95.74%   95.57%   -0.17%     
==========================================
  Files          33       37       +4     
  Lines        1669     1742      +73     
  Branches      442      454      +12     
==========================================
+ Hits         1598     1665      +67     
- Misses         64       70       +6     
  Partials        7        7              

Files	Coverage Δ
milvus/HttpClient.ts	100.00% <100.00%> (ø)
milvus/const/defaults.ts	100.00% <100.00%> (ø)
milvus/http/Collection.ts	100.00% <100.00%> (ø)
milvus/http/index.ts	100.00% <100.00%> (ø)
milvus/index.ts	100.00% <100.00%> (ø)
milvus/types.ts	100.00% <100.00%> (ø)
test/tools/index.ts	100.00% <100.00%> (ø)
milvus/http/Vector.ts	64.70% <64.70%> (ø)

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[sre-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: nameczz, shanghaikid

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