This commit adds onto 679e0de0
If an exception is thrown, the exception message might not contain the full errors. Individual failures may get added to suppressed throwables. FileUtils functions previously just returned the exception message as errmsg which did not contain full error info.
Now `Error` class has been implemented which will used to return errors, including suppressed throwables. Each `Error` object will have an error type, code, message and a list of throwables in case multiple throwables need to returned, in addition to the suppressed throwables list in each throwable.
A supportive `Errno` base class has been implemented as well which other errno classes can inherit of which some have been added. Each `Errno` object will have an error type, code and message and can be converted to an `Error` object if needed.
Requirement for `Context` object has been removed from FileUtils so that they can be called from anywhere in code instead of having to pass around `Context` objects. Previously, `string.xml` was used to store error messages in case multi language support had to be added in future since error messages are displayed to users and not just for dev usage. However, now this will have to handled in java code if needed, based on locale.
The termux related file utils have also been moved from FileUtils to TermuxFileUtils
The termux plugins should use this library instead of hardcoding "com.termux" values in their source code.
The library can be included as a dependency by plugins and third party apps by including the following line in the build.gradle where x.xxx is the version number, once its published.
`implementation 'com.termux:termux-shared:x.xxx'`
The `TermuxConstants` class has been updated to `v0.17.0`, `TermuxPreferenceConstants` to `v0.9.0` and `TermuxPropertyConstants` to `v0.6.0`. Check their Changelog sections for info on changes.
Some typos and redundant code has also been fixed.
