Add convert any types code to ToStringMapE

[spksoft]

Add convert any types code to ToStringMapE

This PR will add a convert code to ToStringMapE function for handle unexpected type such as any struct type

• [x] Add convert code into default section of switch condition of ToStringMapE function
• [x] Add new testcase to TestToStringMapE

[CLAassistant]

All committers have signed the CLA.