feat: add `collection_exists` and `delete_collection` #49

	name: main

	on:
	workflow_dispatch:
	inputs:
	logLevel:
	description: 'Log level'
	required: true
	default: 'info'
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	build:

	runs-on: ubuntu-20.04

	steps:
	- uses: actions/checkout@v2

	- name: Install apt-get packages
	run: \|
	echo RESET grub-efi/install_devices \| sudo debconf-communicate grub-pc
	sudo ACCEPT_EULA=Y apt-get update
	sudo ACCEPT_EULA=Y apt-get upgrade
	sudo apt-get install wget git curl software-properties-common build-essential libjpeg-dev libpng-dev cmake

	- name: Run qdrant in Docker
	run: \|
	mkdir qdrant_storage
	nohup docker run -d -p 6333:6333 -p 6334:6334 -v ${{ github.workspace }}/qdrant_storage:/qdrant/storage:z qdrant/qdrant

	- name: Install Rust target for wasm
	run: \|
	rustup target add wasm32-wasi

	- name: Install WasmEdge
	run: \|
	VERSION=0.13.5
	curl -sSf https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/utils/install.sh \| sudo bash -s -- -v $VERSION -p /usr/local
	# curl -X PUT 'http://localhost:6333/collections/test_collection' -H 'Content-Type: application/json' --data-raw '{ "vectors": { "size": 4, "distance": "Dot" } }'

	- name: Run examples
	run: \|
	cd examples
	RUSTFLAGS="--cfg wasmedge --cfg tokio_unstable" cargo build --target wasm32-wasi --release
	wasmedgec target/wasm32-wasi/release/qdrant_examples.wasm qdrant_examples.wasm
	wasmedge qdrant_examples.wasm

Provide feedback