Refactor language features, which control effect system

- Introduce new language feature 'ReadDeserializedContracts', which
allows to deserialize contracts from metadata.

- Introduce new language feature 'AllowContractsForCustomFunctions',
which allows reading contracts from sources.

- Use new features instead of combination 'CallsInPlaceEffect ||
ReturnsEffect'

- Rename 'CallsInPlaceEffect' -> 'UseCallsInPlaceEffect',
'ReturnsEffect' -> 'UseReturnsEffect'. As names suggest, they control
if it is allowed to use corresponding effect in analysis.

We have to introduce separate 'ReadDeserializedContracts' to enable
contracts only in some modules of the project, because libraries are
read with project-wide settings (see KT-20692).

compiler/testData/cli/js/jsExtraHelp.out

@@ -14,6 +14,7 @@ where advanced options include:
   -Xno-check-actual          Do not check presence of 'actual' modifier in multi-platform projects
   -Xno-inline                Disable method inlining
   -Xplugin=<path>            Load plugins from the given classpath
+  -Xread-deserialized-contracts Enable reading of contracts from metadata
   -Xrepeat=<count>           Repeat compilation (for performance analysis)
   -Xreport-output-files      Report source to output files mapping
   -Xskip-metadata-version-check Load classes with bad metadata version anyway (incl. pre-release classes)

compiler/testData/cli/jvm/extraHelp.out

@@ -53,6 +53,7 @@ where advanced options include:
   -Xno-check-actual          Do not check presence of 'actual' modifier in multi-platform projects
   -Xno-inline                Disable method inlining
   -Xplugin=<path>            Load plugins from the given classpath
+  -Xread-deserialized-contracts Enable reading of contracts from metadata
   -Xrepeat=<count>           Repeat compilation (for performance analysis)
   -Xreport-output-files      Report source to output files mapping
   -Xskip-metadata-version-check Load classes with bad metadata version anyway (incl. pre-release classes)