add instructions to install aws dependencies (#153)

Author: yanw-bq

docs/building-the-aws-driver/BuildingAwsSdkCpp.md

@@ -0,0 +1,20 @@
+# Building the AWS SDK for C++
+The driver supports AWS IAM and AWS Secrets Manager authentication by using [AWS SDK for C++](https://docs.aws.amazon.com/sdk-for-cpp/). The driver requires `aws-cpp-sdk-core`, `aws-cpp-sdk-rds`, and `aws-cpp-sdk-secretsmanager`. You can either build the SDK yourself directly from the source using the script under `scripts` folder or [download the libraries using a package manager](https://docs.aws.amazon.com/sdk-for-cpp/v1/developer-guide/sdk-from-pm.html). The script will install the SDK under `aws_sdk/install` folder. The driver will look for SDK dependencies through `aws_sdk/install` folder and `CMAKE_PREFIX_PATH` environment variable.
+> **_NOTE:_** On Winodws, depending on the use case, you may build the SDK as a static library or dynamic library. On Linux and macOS, you should always build the SDK as a dynamic library.
+
+## Windows
+If you want to build and run the driver unit tests, you need to build the SDK as static library, as the unit test binary will link every dependency statically.
+```
+.\scripts\build_aws_sdk_win.ps1 x64 Debug OFF "Visual Studio 16 2019"
+```
+If you want to build the driver DLL, you need to build the SDK as dynamic library, as the driver DLL will link the SDK dynamically.
+```
+.\scripts\build_aws_sdk_win.ps1 x64 Release ON "Visual Studio 16 2019"
+```
+## Linux/macOS
+```
+./scripts/build_aws_sdk_unix.sh Release
+```
+
+## Troubleshoot
+See https://docs.aws.amazon.com/sdk-for-cpp/v1/developer-guide/troubleshooting-cmake.html

docs/building-the-aws-driver/BuildingTheAwsDriver.md

@@ -7,7 +7,10 @@
     - [Visual Studio](https://visualstudio.microsoft.com/downloads/)
       > The driver has been built successfully using `Visual Studio 2019`, and it may not build correctly with other versions. When installing Visual Studio, ensure the `Visual C++ 2019` and `Visual Studio Tools for CMake` packages are also installed.
     - [MySQL Server](https://dev.mysql.com/downloads/installer/)
-2. Build the driver in the `build` directory with the following commands:
+
+2. Refer to [Building the AWS SDK for C++](./BuildingAwsSdkCpp.md) to install required AWS dependencies.
+   
+3. Build the driver in the `build` directory with the following commands:
     ```
     cmake -S . -B build -G "Visual Studio 16 2019" -DMYSQL_DIR="C:\Program Files\MySQL\MySQL Server 8.0" -DMYSQLCLIENT_STATIC_LINKING=TRUE
     cmake --build build --config Release
@@ -20,11 +23,14 @@
      - `mysql-client`
      - `mysql`
      - `aws-sdk-cpp`
-2. Set the environment variable MYSQL_DIR as the path to your `mysql-client` installation location:
+
+2. Refer to [Building the AWS SDK for C++](./BuildingAwsSdkCpp.md) to install required AWS dependencies.
+   
+3. Set the environment variable MYSQL_DIR as the path to your `mysql-client` installation location:
     ```
     export MYSQL_DIR=/usr/local/opt/mysql-client
     ```
-3. Build the driver in the `build` directory with the following commands:
+4. Build the driver in the `build` directory with the following commands:
     ```
     cmake -S . -B build -G "Unix Makefiles" -DMYSQLCLIENT_STATIC_LINKING=true -DODBC_INCLUDES=/usr/local/Cellar/libiodbc/3.52.15/include
     cmake --build build --config Release
@@ -52,7 +58,10 @@ export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/opt/[email protected]/lib/
     sudo apt-get update
     sudo apt-get install build-essential libgtk-3-dev libmysqlclient-dev unixodbc unixodbc-dev
     ```
-2. Build the driver in the `build` directory with the following commands:
+
+2. Refer to [Building the AWS SDK for C++](./BuildingAwsSdkCpp.md) to install required AWS dependencies.
+
+3. Build the driver in the `build` directory with the following commands:
     ```
     cmake -S . -B build -G "Unix Makefiles" -DMYSQLCLIENT_STATIC_LINKING=true -DWITH_UNIXODBC=1
     cmake --build build --config Release