a conda script for euleros environments to prepare MindSpore runtime environment

scripts/OWNERS

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+approvers:
+- zhoufeng54
+- jjfeing

scripts/install/euleros-ascend-conda.sh

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+#!/bin/bash
+set -ex
+
+MINDSPORE_VERSION=${MINDSPORE_VERSION:-1.5.0}
+PYTHON_VERSION=${PYTHON_VERSION:-3.7.5}
+MINDSPORE_VERSION=${MINDSPORE_VERSION:-1.5.0}
+
+cd /tmp
+curl -O https://mirrors.tuna.tsinghua.edu.cn/anaconda/miniconda/Miniconda3-py37_4.10.3-Linux-aarch64.sh
+bash Miniconda3-py37_4.10.3-Linux-aarch64.sh -b
+
+# add conda to PATH
+echo -e 'export PATH=~/miniconda3/bin/:$PATH' >> ~/.bash_profile
+echo -e '. ~/miniconda3/etc/profile.d/conda.sh' >> ~/.bash_profile
+source ~/.bash_profile
+conda init bash
+# setting up conda mirror
+cat >~/.condarc  <<END
+channels:
+  - defaults
+show_channel_urls: true
+default_channels:
+  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
+  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
+  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
+custom_channels:
+  conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
+  msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
+  bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
+  menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
+  pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
+  pytorch-lts: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
+  simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
+END
+
+# initialize conda env and install mindspore-ascend
+conda create -n ms_${PYTHON_VERSION} python=${PYTHON_VERSION} -y
+conda activate ms_${PYTHON_VERSION}
+conda install mindspore-ascend=${MINDSPORE_VERSION} -c mindspore -c conda-forge
+
+# verify installation
+python -c "import mindspore;mindspore.run_check()"