[Feature] Enable clean up call in multiple locations

[yellowbean]

current implementation

The clean up test only was performed at beginning of bond waterfall execution (which is defined by "bond payment frequency"

Propose

The clean up test should be performed in multiple locations

• a DatePattern to be tested
• with optional a test range for clean up

Location of changes:

in Deal Run assumption

Syntax

current syntax

The statement will be executed right before each waterfall/liability payment day

("call", ("if", `<Condition>`))

new syntax

 # backward compatible -> test on each day of waterfall/liability payment day (before waterfall execution)
 ("call", ("if", `<Condition>` ))

 # test on dates described by <DatePattern>, the `if` is redundant.
 ("callWhen", ("onDates", `<DatePattern>`, `<Condition 1>`, `<Condition 2>`, `<Condition 3>` )
             , ("if", `<Condition 1>`, `<Condition 2 >`)
 )

[yellowbean]

Step 1 , clean up current code

current logic:

case fruit of 
   Just apple ->
       if testSweet apple then 
           <ProcessA>
       else
           <ProcessB>
   Nothing ->
           <ProcessB>

Done with : https://stackoverflow.com/questions/79152742/how-to-factor-out-duplication-code-haskell-maybe-if-else

[yellowbean]

d49fbaf