Add error log sending to master template and add provisioning configuration

[nvkevlu]

Add error log sending to master template and an ability to configure it in provisioning.

Description

Add error log sending to master template and an ability to configure it in provisioning. A new PropKey is expected for allow_error_sending: true to be in the project.yml for a client to allow error log sending. If this is not included, a _modify_error_sender callback added to StaticFileBuilder's build_from_template will remove the error_log_sender component from the client during provisioning.

Types of changes

• Non-breaking change (fix or new feature that would not break existing functionality).
• Breaking change (fix or new feature that would cause existing functionality to change).
• New tests added to cover the changes.
• Quick tests passed locally by running ./runtest.sh.
• In-line docstrings updated.
• Documentation updated.

[nvkevlu]

/build

[nvkevlu]

/build

[YuanTingHsieh]

LGTM, one suggestion

[YuanTingHsieh]

Please resolve conflicts and check the type/value of "section"

[nvkevlu]

/build

[nvkevlu]

/build