Reorganize Form Builder Scala code

[ebruchez]

This code has a few issue:

• it is not well organized
• it is lacking abstractions and there are lots of repetition
• it is generally difficult to maintain
• it is unclear which functions are entry points from XForms
• it relies too much on dynamically-typed data structures

Steps:

• [x] search and list all fbf:* functions used from XForms/XSLT
• [x] don't have FormBuilder extend `FormRunnerContainerOps
• [x] place such functions in a specific location
  • We already have FormBuilderRpcApiImpl for functions called from the client. Maybe introduce FormBuilderXmlApi(Impl).
• [x] introduce FormBuilderDocContext implicit for Scala calls
• [ ] TODO

[ebruchez]

Use of fbf:* functions:

Function Name	Uses	Moved	Use frf:
updateTemplatesFromDynamicIterationChange	1	[x]	-
renameControlIterationIfNeeded	1	[x]	-
renameControlIfNeededXPath	2	[x]	-
updateMipAsAttributeOnlyXPath	3	[x]	-
setRepeatPropertiesXPath	1	[x]	-
selectCellForControlId	1	[x]	-
writeAlertsAndValidationsAsXMLXPath	1	[x]	-
setControlHelp	2	[x]	-
setControlLHHAMediatype	1	[x]	-
setControlItems	1	[x]	-
setItemsetHTMLMediatype	2	[x]	-
initializeGrids	2	[x]	-
deleteSectionTemplateContentHolders	1	[x]	-
publish	1	[x]	-
findBlankLHHAHoldersAndElements	1	[x]	-
nextIdsXPath	1	[x]	-
getBindNameOrEmpty	1	[x]	?
defaultIterationName	3	[x]	-
bindId	1	[x]	Yes
controlNameFromId	13	[x]	Yes
getContainerNameOrEmpty	1	[x]	Yes
findControlByNameOrEmpty	7	[x]	Yes
hasCustomIterationName	1	[x]	-
findRepeatIterationNameOrEmpty	1	[x]	Yes
getNormalizedMin	1	[x]	-
getNormalizedMaxOrEmpty	1	[x]	-
readMipAsAttributeOnlyOrEmpty	7	[x]	-
getAllControlNamesXPath	2	[x]	-
findBindByNameOrEmpty	2	[x]	Yes
findNextContainer	2	[x]	-
containerByIdXPath	1	[x]	-
bindingForControlElementOrEmpty	2	[x]	-
readDefaultAlertAsXML	1	[x]	-
readValidationsAsXML	1	[x]	-
getControlHelpOrEmpty	2	[x]	-
isControlLHHAHTMLMediatype	1	[x]	-
findNextControlId	2	[x]	-
formInstanceRoot	4	[x]	-
metadataInstanceRootOpt	4	[x]	Yes
findDataHoldersXPath	2	[x]	-
possibleAppearancesByControlNameAsXML	1	[x]	-
isValidListOfMediatypeRanges	2	[x]	-
findSchemaOrEmpty	1	[x]	-
findSchemaPrefixOrEmpty	1	[x]	-
countSections	1	[x]	-
countRepeats	1	[x]	-
countGrids	1	[x]	-
countSectionTemplates	1	[x]	-
countAllNonContainers	1	[x]	-
countAllControls	1	[x]	-
findControlBoundNodeByName	2	[x]	-
isItemsetHTMLMediatype	1	[x]	-
currentLangXPath	1	[x]	-
getControlItemsGroupedByValue	1	[x]	-
resourcesRoot	1	[x]	-
iterateSelfAndDescendantBindsResourceHoldersXPath	1	[x]	-
gridCanDoClasses	3	[x]	-
hasEditor	1	[x]	-
MinimalIEVersion	1	[x]	-
isBrowserSupported	1	[x]	-
alwaysShowRoles	1	[x]	-
sectionCanDoClasses	1	[x]	-
buildFormBuilderControlEffectiveIdOrEmpty	1	[x]	-

Use of frf:* functions:

• TODO