extend iterate-all support to template context

[tarunKoyalwar]

Please describe your feature request:

iterate-all option which is only supported in http protocol allows dynamically extracted values (more than 1) to be iterated
which resolves issue related to handling of array and more

link to how it is implemented in http protocol

nuclei/v2/pkg/protocols/http/request.go

Lines 438 to 440 in caedc8a

	skip, gotErr = executeFunc(inputData, payloads, dynamicValues)
	}
	if gotErr != nil && requestErr == nil {

Implementation

• to implement iterate-all to template context/level we need to add new internal method that must be implemented by all protocols

  func (r Request) executeFunc(data string,payloads ,dynamicValues map[string]interface{}) {
} 

similar to

nuclei/v2/pkg/protocols/http/request.go

Line 349 in caedc8a

executeFunc := func(data string, payloads, dynamicValue map[string]interface{}) (bool, error) {

• this executeFunc will be used in ExecuteWithResults and will contain all logic except input/target

func (r *Request) ExecuteWithResults(....) {
 .... 
    r.executeFunc(...) 
...

for more details regarding implementation refer here

Describe the use case of this feature:

[tarunKoyalwar]

Note: This will not be worked on since this can be achieved easily with more features using flow option . and also because iterate-all is scheduler to be deprecated soon