monitor:JSON: Parse fan monitoring conditions

Optional conditions can be used to include monitoring a fan or not based
on the results of the condition function configured. These condition
functions

monitor:JSON: Parse fan monitoring conditions

Optional conditions can be used to include monitoring a fan or not based
on the results of the condition function configured. These condition
functions have their own required set of parameters, so parsing the JSON
for these conditions are done per supported condition function. This
adds the JSON parsing support for the current condition functions.

Tested:
`propertiesMatch` JSON parameters parsed into condition function
Any required parameters missing throws an exception
The `propertiesMatch` condition functions the same using JSON

Change-Id: I0f843951f4e83f2a5d44068820694010538788c1
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>

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Support optional conditions on creating fans

This adds the functional infrastructure to optionally attach a condition
function to a fan definition. When a condition is defined on a fan, it
must be t

Support optional conditions on creating fans

This adds the functional infrastructure to optionally attach a condition
function to a fan definition. When a condition is defined on a fan, it
must be true for a fan's associated functional properties to be created.
When the given condition fails, that fan's functional properties will
not be created by fan monitor. A fan without a defined condition will
have all of its associated functional properties created.

Example of generated condition (generation commit to follow):

make_condition(condition::propertiesMatch(
std::vector<PropertyState>{
PropertyState{
PropertyIdentity{
"/xyz/openbmc_project/inventory/system/chassis",
"xyz.openbmc_project.Inventory.Decorator.CoolingType",
"WaterCooled"
},
static_cast<bool>(false)
}
}
)),

Tested:
Fan functional properties are not created when a condition fails
Fan functional properties are created when condition passes
Fan functional properties are created when no condition exists

Change-Id: I9ced2e520d2f97e6655c9417970b3e976d78fef4
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>

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