Pull in and test community improvements

[convenient]

This PR is

• https://github.com/genecommerce/module-encryption-key-manager/pull/47 reworked to remove some redundant information, after speaking with adobe the only need for maintenance mode was for the long processing of sales_order_data thanks @nrdevau
• https://github.com/genecommerce/module-encryption-key-manager/pull/51 add a specific log file, speaking to the community, this is what they want so this is what we can provide :) Thanks @WaPoNe . The only amendment here i have done is update the test case.