[LMS-465] check key-value pair files for extra white characters

bds/source/java/ch/systemsx/cisd/bds/Utilities.java

...urce/java/ch/systemsx/cisd/bds/check/AbstractChecker.java

...urce/java/ch/systemsx/cisd/bds/check/HCSImageChecker.java

...rce/java/ch/systemsx/cisd/bds/check/StructureChecker.java

bds/source/java/ch/systemsx/cisd/bds/storage/IFile.java

...ce/java/ch/systemsx/cisd/bds/storage/filesystem/File.java

.../java/ch/systemsx/cisd/bds/check/AbstractCheckerTest.java

.../java/ch/systemsx/cisd/bds/check/HCSImageCheckerTest.java

...java/ch/systemsx/cisd/bds/check/StructureCheckerTest.java

bds/testdata/bds_new_lines/annotations/channel1/wavelength

bds/testdata/bds_new_lines/annotations/channel2/wavelength

...icroX_200801011213_3VCP1/TIFF/blabla_3VCP1_K13_8_w460.tif

...icroX_200801011213_3VCP1/TIFF/blabla_3VCP1_M03_2_w530.tif

...ta/original/microX_200801011213_3VCP1/TIFF/readme-not.txt

...new_lines/data/original/microX_200801011213_3VCP1/log.txt

...s/data/standard/channel1/row11/column13/row3_column2.tiff

...es/data/standard/channel2/row13/column3/row1_column2.tiff

bds/testdata/bds_new_lines/metadata/data_set/code

bds/testdata/bds_new_lines/metadata/data_set/is_complete

bds/testdata/bds_new_lines/metadata/data_set/is_measured